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Human-readable text syntax
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Human-readable text syntax
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preserves.text
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Formatter
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append()
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contents()
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parse()
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parse_with_annotations()
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stringify()
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preserves.text
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Formatter
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append()
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contents()
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Parser
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extend()
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next()
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parse()
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parse_with_annotations()
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stringify()
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< h1 id = "human-readable-text-syntax" > Human-readable text syntax< / h1 >
< div class = "doc doc-object doc-module" >
< a id = "preserves.text" > < / a >
< div class = "doc doc-contents first" >
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< p > The < a class = "autorefs autorefs-internal" href = "#preserves.text" > preserves.text< / a > module implements the < a href = "https://preserves.dev/preserves-text.html" > Preserves human-readable text
syntax< / a > .< / p >
< p > The main entry points are functions < a class = "autorefs autorefs-internal" href = "#preserves.text.stringify" > stringify< / a > ,
< a class = "autorefs autorefs-internal" href = "#preserves.text.parse" > parse< / a > , and
< a class = "autorefs autorefs-internal" href = "#preserves.text.parse_with_annotations" > parse_with_annotations< / a > .< / p >
< div class = "highlight" > < pre > < span > < / span > < code > < span class = "o" > > > > < / span > < span class = "n" > stringify< / span > < span class = "p" > (< / span > < span class = "n" > Record< / span > < span class = "p" > (< / span > < span class = "n" > Symbol< / span > < span class = "p" > (< / span > < span class = "s1" > ' hi' < / span > < span class = "p" > ),< / span > < span class = "p" > [< / span > < span class = "mi" > 1< / span > < span class = "p" > ,< / span > < span class = "p" > [< / span > < span class = "mi" > 2< / span > < span class = "p" > ,< / span > < span class = "mi" > 3< / span > < span class = "p" > ]]))< / span >
< span class = "s1" > ' < hi 1 [2 3]> ' < / span >
< span class = "o" > > > > < / span > < span class = "n" > parse< / span > < span class = "p" > (< / span > < span class = "s1" > ' < hi 1 [2 3]> ' < / span > < span class = "p" > )< / span >
< span class = "c1" > #hi(1, (2, 3))< / span >
< / code > < / pre > < / div >
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< div class = "doc doc-children" >
< div class = "doc doc-object doc-class" >
< h2 id = "preserves.text.Formatter" class = "doc doc-heading" >
< code class = "highlight language-python" > < span class = "n" > Formatter< / span > < span class = "p" > (< / span > < span class = "n" > format_embedded< / span > < span class = "o" > =< / span > < span class = "k" > lambda< / span > < span class = "n" > x< / span > < span class = "p" > :< / span > < span class = "n" > x< / span > < span class = "p" > ,< / span > < span class = "n" > indent< / span > < span class = "o" > =< / span > < span class = "kc" > None< / span > < span class = "p" > ,< / span > < span class = "n" > with_commas< / span > < span class = "o" > =< / span > < span class = "kc" > False< / span > < span class = "p" > ,< / span > < span class = "n" > trailing_comma< / span > < span class = "o" > =< / span > < span class = "kc" > False< / span > < span class = "p" > ,< / span > < span class = "n" > include_annotations< / span > < span class = "o" > =< / span > < span class = "kc" > True< / span > < span class = "p" > )< / span > < / code >
< / h2 >
< div class = "doc doc-contents " >
< p class = "doc doc-class-bases" >
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Bases: < code > < span title = "preserves.text.TextCodec" > TextCodec< / span > < / code > < / p >
< p > Printer (and indenting pretty-printer) for producing human-readable syntax from
Preserves < code > Value< / code > s.< / p >
< div class = "highlight" > < pre > < span > < / span > < code > < span class = "o" > > > > < / span > < span class = "n" > f< / span > < span class = "o" > =< / span > < span class = "n" > Formatter< / span > < span class = "p" > ()< / span >
< span class = "o" > > > > < / span > < span class = "n" > f< / span > < span class = "o" > .< / span > < span class = "n" > append< / span > < span class = "p" > ({< / span > < span class = "s1" > ' a' < / span > < span class = "p" > :< / span > < span class = "mi" > 1< / span > < span class = "p" > ,< / span > < span class = "s1" > ' b' < / span > < span class = "p" > :< / span > < span class = "mi" > 2< / span > < span class = "p" > })< / span >
< span class = "o" > > > > < / span > < span class = "n" > f< / span > < span class = "o" > .< / span > < span class = "n" > append< / span > < span class = "p" > (< / span > < span class = "n" > Record< / span > < span class = "p" > (< / span > < span class = "n" > Symbol< / span > < span class = "p" > (< / span > < span class = "s1" > ' label' < / span > < span class = "p" > ),< / span > < span class = "p" > [< / span > < span class = "s1" > ' field1' < / span > < span class = "p" > ,< / span > < span class = "p" > [< / span > < span class = "s1" > ' field2item1' < / span > < span class = "p" > ,< / span > < span class = "s1" > ' field2item2' < / span > < span class = "p" > ]]))< / span >
< span class = "o" > > > > < / span > < span class = "nb" > print< / span > < span class = "p" > (< / span > < span class = "n" > f< / span > < span class = "o" > .< / span > < span class = "n" > contents< / span > < span class = "p" > ())< / span >
< span class = "p" > {< / span > < span class = "s2" > " a" < / span > < span class = "p" > :< / span > < span class = "mi" > 1< / span > < span class = "s2" > " b" < / span > < span class = "p" > :< / span > < span class = "mi" > 2< / span > < span class = "p" > }< / span > < span class = "o" > < < / span > < span class = "n" > label< / span > < span class = "s2" > " field1" < / span > < span class = "p" > [< / span > < span class = "s2" > " field2item1" < / span > < span class = "s2" > " field2item2" < / span > < span class = "p" > ]< / span > < span class = "o" > > < / span >
< span class = "o" > > > > < / span > < span class = "n" > f< / span > < span class = "o" > =< / span > < span class = "n" > Formatter< / span > < span class = "p" > (< / span > < span class = "n" > indent< / span > < span class = "o" > =< / span > < span class = "mi" > 4< / span > < span class = "p" > )< / span >
< span class = "o" > > > > < / span > < span class = "n" > f< / span > < span class = "o" > .< / span > < span class = "n" > append< / span > < span class = "p" > ({< / span > < span class = "s1" > ' a' < / span > < span class = "p" > :< / span > < span class = "mi" > 1< / span > < span class = "p" > ,< / span > < span class = "s1" > ' b' < / span > < span class = "p" > :< / span > < span class = "mi" > 2< / span > < span class = "p" > })< / span >
< span class = "o" > > > > < / span > < span class = "n" > f< / span > < span class = "o" > .< / span > < span class = "n" > append< / span > < span class = "p" > (< / span > < span class = "n" > Record< / span > < span class = "p" > (< / span > < span class = "n" > Symbol< / span > < span class = "p" > (< / span > < span class = "s1" > ' label' < / span > < span class = "p" > ),< / span > < span class = "p" > [< / span > < span class = "s1" > ' field1' < / span > < span class = "p" > ,< / span > < span class = "p" > [< / span > < span class = "s1" > ' field2item1' < / span > < span class = "p" > ,< / span > < span class = "s1" > ' field2item2' < / span > < span class = "p" > ]]))< / span >
< span class = "o" > > > > < / span > < span class = "nb" > print< / span > < span class = "p" > (< / span > < span class = "n" > f< / span > < span class = "o" > .< / span > < span class = "n" > contents< / span > < span class = "p" > ())< / span >
< span class = "p" > {< / span >
< span class = "s2" > " a" < / span > < span class = "p" > :< / span > < span class = "mi" > 1< / span >
< span class = "s2" > " b" < / span > < span class = "p" > :< / span > < span class = "mi" > 2< / span >
< span class = "p" > }< / span >
< span class = "o" > < < / span > < span class = "n" > label< / span > < span class = "s2" > " field1" < / span > < span class = "p" > [< / span >
< span class = "s2" > " field2item1" < / span >
< span class = "s2" > " field2item2" < / span >
< span class = "p" > ]< / span > < span class = "o" > > < / span >
< / code > < / pre > < / div >
< p > < strong > Parameters:< / strong > < / p >
< table >
< thead >
< tr >
< th > Name< / th >
< th > Type< / th >
< th > Description< / th >
< th > Default< / th >
< / tr >
< / thead >
< tbody >
< tr >
< td > < code > format_embedded< / code > < / td >
< td >
< / td >
< td > < p > function accepting an < a class = "autorefs autorefs-internal" href = "../values/#preserves.values.Embedded" > Embedded< / a > .embeddedValue and
returning a < code > Value< / code > for serialization.< / p > < / td >
< td >
< code > lambda x: x< / code >
< / td >
< / tr >
< tr >
< td > < code > indent< / code > < / td >
< td >
< code > int | None< / code >
< / td >
< td > < p > < code > None< / code > disables indented pretty-printing; otherwise, an < code > int< / code > specifies indentation
per nesting-level.< / p > < / td >
< td >
< code > None< / code >
< / td >
< / tr >
< tr >
< td > < code > with_commas< / code > < / td >
< td >
< code > bool< / code >
< / td >
< td > < p > < code > True< / code > causes commas to separate sequence and set items and dictionary entries;
< code > False< / code > omits commas.< / p > < / td >
< td >
< code > False< / code >
< / td >
< / tr >
< tr >
< td > < code > trailing_comma< / code > < / td >
< td >
< code > bool< / code >
< / td >
< td > < p > < code > True< / code > causes a comma to be printed < em > after< / em > the final item or entry in a sequence,
set or dictionary; < code > False< / code > omits this trailing comma< / p > < / td >
< td >
< code > False< / code >
< / td >
< / tr >
< tr >
< td > < code > include_annotations< / code > < / td >
< td >
< code > bool< / code >
< / td >
< td > < p > < code > True< / code > causes annotations to be included in the output; < code > False< / code > causes them to be
omitted.< / p > < / td >
< td >
< code > True< / code >
< / td >
< / tr >
< / tbody >
< / table >
< p > < strong > Attributes:< / strong > < / p >
< table >
< thead >
< tr >
< th > Name< / th >
< th > Type< / th >
< th > Description< / th >
< / tr >
< / thead >
< tbody >
< tr >
< td > < code > indent_delta< / code > < / td >
< td >
< code > int< / code >
< / td >
< td > < p > indentation per nesting-level< / p > < / td >
< / tr >
< tr >
< td > < code > chunks< / code > < / td >
< td >
< code > list[str]< / code >
< / td >
< td > < p > fragments of output< / p > < / td >
< / tr >
< / tbody >
< / table >
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< details class = "quote" >
< summary > Source code in < code > preserves/text.py< / code > < / summary >
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< div class = "highlight" > < table class = "highlighttable" > < tr > < td class = "linenos" > < div class = "linenodiv" > < pre > < span > < / span > < span class = "normal" > 475< / span >
< span class = "normal" > 476< / span >
< span class = "normal" > 477< / span >
< span class = "normal" > 478< / span >
< span class = "normal" > 479< / span >
< span class = "normal" > 480< / span >
< span class = "normal" > 481< / span >
< span class = "normal" > 482< / span >
< span class = "normal" > 483< / span >
< span class = "normal" > 484< / span >
< span class = "normal" > 485< / span >
< span class = "normal" > 486< / span >
< span class = "normal" > 487< / span >
< span class = "normal" > 488< / span >
< span class = "normal" > 489< / span > < / pre > < / div > < / td > < td class = "code" > < div > < pre > < span > < / span > < code > < span class = "k" > def< / span > < span class = "fm" > __init__< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ,< / span >
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< span class = "n" > format_embedded< / span > < span class = "o" > =< / span > < span class = "k" > lambda< / span > < span class = "n" > x< / span > < span class = "p" > :< / span > < span class = "n" > x< / span > < span class = "p" > ,< / span >
< span class = "n" > indent< / span > < span class = "o" > =< / span > < span class = "kc" > None< / span > < span class = "p" > ,< / span >
< span class = "n" > with_commas< / span > < span class = "o" > =< / span > < span class = "kc" > False< / span > < span class = "p" > ,< / span >
< span class = "n" > trailing_comma< / span > < span class = "o" > =< / span > < span class = "kc" > False< / span > < span class = "p" > ,< / span >
< span class = "n" > include_annotations< / span > < span class = "o" > =< / span > < span class = "kc" > True< / span > < span class = "p" > ):< / span >
< span class = "nb" > super< / span > < span class = "p" > (< / span > < span class = "n" > Formatter< / span > < span class = "p" > ,< / span > < span class = "bp" > self< / span > < span class = "p" > )< / span > < span class = "o" > .< / span > < span class = "fm" > __init__< / span > < span class = "p" > ()< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > indent_delta< / span > < span class = "o" > =< / span > < span class = "mi" > 0< / span > < span class = "k" > if< / span > < span class = "n" > indent< / span > < span class = "ow" > is< / span > < span class = "kc" > None< / span > < span class = "k" > else< / span > < span class = "n" > indent< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > indent_distance< / span > < span class = "o" > =< / span > < span class = "mi" > 0< / span >
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< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > nesting< / span > < span class = "o" > =< / span > < span class = "mi" > 0< / span >
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< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > with_commas< / span > < span class = "o" > =< / span > < span class = "n" > with_commas< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > trailing_comma< / span > < span class = "o" > =< / span > < span class = "n" > trailing_comma< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > chunks< / span > < span class = "o" > =< / span > < span class = "p" > []< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _format_embedded< / span > < span class = "o" > =< / span > < span class = "n" > format_embedded< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > include_annotations< / span > < span class = "o" > =< / span > < span class = "n" > include_annotations< / span >
< / code > < / pre > < / div > < / td > < / tr > < / table > < / div >
< / details >
< div class = "doc doc-children" >
< div class = "doc doc-object doc-function" >
< h3 id = "preserves.text.Formatter.append" class = "doc doc-heading" >
< code class = "highlight language-python" > < span class = "n" > append< / span > < span class = "p" > (< / span > < span class = "n" > v< / span > < span class = "p" > )< / span > < / code >
< / h3 >
< div class = "doc doc-contents " >
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< p > Extend < code > self.chunks< / code > with at least one chunk, together making up the text
representation of < code > v< / code > .< / p >
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< details class = "quote" >
< summary > Source code in < code > preserves/text.py< / code > < / summary >
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< div class = "highlight" > < table class = "highlighttable" > < tr > < td class = "linenos" > < div class = "linenodiv" > < pre > < span > < / span > < span class = "normal" > 545< / span >
< span class = "normal" > 546< / span >
< span class = "normal" > 547< / span >
< span class = "normal" > 548< / span >
< span class = "normal" > 549< / span >
< span class = "normal" > 550< / span >
< span class = "normal" > 551< / span >
< span class = "normal" > 552< / span >
< span class = "normal" > 553< / span >
< span class = "normal" > 554< / span > < / pre > < / div > < / td > < td class = "code" > < div > < pre > < span > < / span > < code > < span class = "k" > def< / span > < span class = "nf" > append< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ,< / span > < span class = "n" > v< / span > < span class = "p" > ):< / span >
< span class = "w" > < / span > < span class = "sd" > " " " Extend `self.chunks` with at least one chunk, together making up the text< / span >
< span class = "sd" > representation of `v`." " " < / span >
< span class = "k" > if< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > chunks< / span > < span class = "ow" > and< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > nesting< / span > < span class = "o" > ==< / span > < span class = "mi" > 0< / span > < span class = "p" > :< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > write_indent_space< / span > < span class = "p" > ()< / span >
< span class = "k" > try< / span > < span class = "p" > :< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > nesting< / span > < span class = "o" > +=< / span > < span class = "mi" > 1< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _append< / span > < span class = "p" > (< / span > < span class = "n" > v< / span > < span class = "p" > )< / span >
< span class = "k" > finally< / span > < span class = "p" > :< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > nesting< / span > < span class = "o" > -=< / span > < span class = "mi" > 1< / span >
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< / code > < / pre > < / div > < / td > < / tr > < / table > < / div >
< / details >
< / div >
< / div >
< div class = "doc doc-object doc-function" >
< h3 id = "preserves.text.Formatter.contents" class = "doc doc-heading" >
< code class = "highlight language-python" > < span class = "n" > contents< / span > < span class = "p" > ()< / span > < / code >
< / h3 >
< div class = "doc doc-contents " >
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< p > Returns a < code > str< / code > constructed from the join of the chunks in < code > self.chunks< / code > .< / p >
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< details class = "quote" >
< summary > Source code in < code > preserves/text.py< / code > < / summary >
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< div class = "highlight" > < table class = "highlighttable" > < tr > < td class = "linenos" > < div class = "linenodiv" > < pre > < span > < / span > < span class = "normal" > 496< / span >
< span class = "normal" > 497< / span >
< span class = "normal" > 498< / span > < / pre > < / div > < / td > < td class = "code" > < div > < pre > < span > < / span > < code > < span class = "k" > def< / span > < span class = "nf" > contents< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ):< / span >
< span class = "w" > < / span > < span class = "sd" > " " " Returns a `str` constructed from the join of the chunks in `self.chunks`." " " < / span >
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< span class = "k" > return< / span > < span class = "sa" > u< / span > < span class = "s1" > ' ' < / span > < span class = "o" > .< / span > < span class = "n" > join< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > chunks< / span > < span class = "p" > )< / span >
< / code > < / pre > < / div > < / td > < / tr > < / table > < / div >
< / details >
< / div >
< / div >
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< div class = "doc doc-object doc-function" >
< h3 id = "preserves.text.Formatter.is_indenting" class = "doc doc-heading" >
< code class = "highlight language-python" > < span class = "n" > is_indenting< / span > < span class = "p" > ()< / span > < / code >
< / h3 >
< div class = "doc doc-contents " >
< p > Returns < code > True< / code > iff this < a class = "autorefs autorefs-internal" href = "#preserves.text.Formatter" > Formatter< / a > is in pretty-printing
indenting mode.< / p >
< details class = "quote" >
< summary > Source code in < code > preserves/text.py< / code > < / summary >
< div class = "highlight" > < table class = "highlighttable" > < tr > < td class = "linenos" > < div class = "linenodiv" > < pre > < span > < / span > < span class = "normal" > 500< / span >
< span class = "normal" > 501< / span >
< span class = "normal" > 502< / span >
< span class = "normal" > 503< / span > < / pre > < / div > < / td > < td class = "code" > < div > < pre > < span > < / span > < code > < span class = "k" > def< / span > < span class = "nf" > is_indenting< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ):< / span >
< span class = "w" > < / span > < span class = "sd" > " " " Returns `True` iff this [Formatter][preserves.text.Formatter] is in pretty-printing< / span >
< span class = "sd" > indenting mode." " " < / span >
< span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > indent_delta< / span > < span class = "o" > > < / span > < span class = "mi" > 0< / span >
< / code > < / pre > < / div > < / td > < / tr > < / table > < / div >
< / details >
< / div >
< / div >
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< / div >
< / div >
< / div >
< div class = "doc doc-object doc-class" >
< h2 id = "preserves.text.Parser" class = "doc doc-heading" >
< code class = "highlight language-python" > < span class = "n" > Parser< / span > < span class = "p" > (< / span > < span class = "n" > input_buffer< / span > < span class = "o" > =< / span > < span class = "s1" > ' ' < / span > < span class = "p" > ,< / span > < span class = "n" > include_annotations< / span > < span class = "o" > =< / span > < span class = "kc" > False< / span > < span class = "p" > ,< / span > < span class = "n" > parse_embedded< / span > < span class = "o" > =< / span > < span class = "k" > lambda< / span > < span class = "n" > x< / span > < span class = "p" > :< / span > < span class = "n" > x< / span > < span class = "p" > )< / span > < / code >
< / h2 >
< div class = "doc doc-contents " >
< p class = "doc doc-class-bases" >
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Bases: < code > < span title = "preserves.text.TextCodec" > TextCodec< / span > < / code > < / p >
< p > Parser for the human-readable Preserves text syntax.< / p >
< p > < strong > Parameters:< / strong > < / p >
< table >
< thead >
< tr >
< th > Name< / th >
< th > Type< / th >
< th > Description< / th >
< th > Default< / th >
< / tr >
< / thead >
< tbody >
< tr >
< td > < code > input_buffer< / code > < / td >
< td >
< code > str< / code >
< / td >
< td > < p > initial contents of the input buffer; may subsequently be extended by calling
< a class = "autorefs autorefs-internal" href = "#preserves.text.Parser.extend" > extend< / a > .< / p > < / td >
< td >
< code > ' ' < / code >
< / td >
< / tr >
< tr >
< td > < code > include_annotations< / code > < / td >
< td >
< code > bool< / code >
< / td >
< td > < p > if < code > True< / code > , wrap each value and subvalue in an
< a class = "autorefs autorefs-internal" href = "../values/#preserves.values.Annotated" > Annotated< / a > object.< / p > < / td >
< td >
< code > False< / code >
< / td >
< / tr >
< tr >
< td > < code > parse_embedded< / code > < / td >
< td >
< / td >
< td > < p > function accepting a < code > Value< / code > and returning a possibly-decoded form of that value
suitable for placing into an < a class = "autorefs autorefs-internal" href = "../values/#preserves.values.Embedded" > Embedded< / a > object.< / p > < / td >
< td >
< code > lambda x: x< / code >
< / td >
< / tr >
< / tbody >
< / table >
< p > Normal usage is to supply input text, and keep calling < a class = "autorefs autorefs-internal" href = "#preserves.text.Parser.next" > next< / a >
until a < a class = "autorefs autorefs-internal" href = "../error/#preserves.error.ShortPacket" > ShortPacket< / a > exception is raised:< / p >
< div class = "highlight" > < pre > < span > < / span > < code > < span class = "o" > > > > < / span > < span class = "n" > d< / span > < span class = "o" > =< / span > < span class = "n" > Parser< / span > < span class = "p" > (< / span > < span class = "s1" > ' 123 " hello" @x []' < / span > < span class = "p" > )< / span >
< span class = "o" > > > > < / span > < span class = "n" > d< / span > < span class = "o" > .< / span > < span class = "n" > next< / span > < span class = "p" > ()< / span >
< span class = "mi" > 123< / span >
< span class = "o" > > > > < / span > < span class = "n" > d< / span > < span class = "o" > .< / span > < span class = "n" > next< / span > < span class = "p" > ()< / span >
< span class = "s1" > ' hello' < / span >
< span class = "o" > > > > < / span > < span class = "n" > d< / span > < span class = "o" > .< / span > < span class = "n" > next< / span > < span class = "p" > ()< / span >
< span class = "p" > ()< / span >
< span class = "o" > > > > < / span > < span class = "n" > d< / span > < span class = "o" > .< / span > < span class = "n" > next< / span > < span class = "p" > ()< / span >
< span class = "n" > Traceback< / span > < span class = "p" > (< / span > < span class = "n" > most< / span > < span class = "n" > recent< / span > < span class = "n" > call< / span > < span class = "n" > last< / span > < span class = "p" > ):< / span >
< span class = "o" > ...< / span >
< span class = "n" > preserves< / span > < span class = "o" > .< / span > < span class = "n" > error< / span > < span class = "o" > .< / span > < span class = "n" > ShortPacket< / span > < span class = "p" > :< / span > < span class = "n" > Short< / span > < span class = "nb" > input< / span > < span class = "n" > buffer< / span >
< / code > < / pre > < / div >
< p > Alternatively, keep calling < a class = "autorefs autorefs-internal" href = "#preserves.text.Parser.try_next" > try_next< / a > until it yields
< code > None< / code > , which is not in the domain of Preserves < code > Value< / code > s:< / p >
< div class = "highlight" > < pre > < span > < / span > < code > < span class = "o" > > > > < / span > < span class = "n" > d< / span > < span class = "o" > =< / span > < span class = "n" > Parser< / span > < span class = "p" > (< / span > < span class = "s1" > ' 123 " hello" @x []' < / span > < span class = "p" > )< / span >
< span class = "o" > > > > < / span > < span class = "n" > d< / span > < span class = "o" > .< / span > < span class = "n" > try_next< / span > < span class = "p" > ()< / span >
< span class = "mi" > 123< / span >
< span class = "o" > > > > < / span > < span class = "n" > d< / span > < span class = "o" > .< / span > < span class = "n" > try_next< / span > < span class = "p" > ()< / span >
< span class = "s1" > ' hello' < / span >
< span class = "o" > > > > < / span > < span class = "n" > d< / span > < span class = "o" > .< / span > < span class = "n" > try_next< / span > < span class = "p" > ()< / span >
< span class = "p" > ()< / span >
< span class = "o" > > > > < / span > < span class = "n" > d< / span > < span class = "o" > .< / span > < span class = "n" > try_next< / span > < span class = "p" > ()< / span >
< / code > < / pre > < / div >
< p > For convenience, < a class = "autorefs autorefs-internal" href = "#preserves.text.Parser" > Parser< / a > implements the iterator interface,
backing it with < a class = "autorefs autorefs-internal" href = "#preserves.text.Parser.try_next" > try_next< / a > , so you can simply iterate
over all complete values in an input:< / p >
< div class = "highlight" > < pre > < span > < / span > < code > < span class = "o" > > > > < / span > < span class = "n" > d< / span > < span class = "o" > =< / span > < span class = "n" > Parser< / span > < span class = "p" > (< / span > < span class = "s1" > ' 123 " hello" @x []' < / span > < span class = "p" > )< / span >
< span class = "o" > > > > < / span > < span class = "nb" > list< / span > < span class = "p" > (< / span > < span class = "n" > d< / span > < span class = "p" > )< / span >
< span class = "p" > [< / span > < span class = "mi" > 123< / span > < span class = "p" > ,< / span > < span class = "s1" > ' hello' < / span > < span class = "p" > ,< / span > < span class = "p" > ()]< / span >
< / code > < / pre > < / div >
< div class = "highlight" > < pre > < span > < / span > < code > < span class = "o" > > > > < / span > < span class = "k" > for< / span > < span class = "n" > v< / span > < span class = "ow" > in< / span > < span class = "n" > Parser< / span > < span class = "p" > (< / span > < span class = "s1" > ' 123 " hello" @x []' < / span > < span class = "p" > ):< / span >
< span class = "o" > ...< / span > < span class = "nb" > print< / span > < span class = "p" > (< / span > < span class = "nb" > repr< / span > < span class = "p" > (< / span > < span class = "n" > v< / span > < span class = "p" > ))< / span >
< span class = "mi" > 123< / span >
< span class = "s1" > ' hello' < / span >
< span class = "p" > ()< / span >
< / code > < / pre > < / div >
< p > Supply < code > include_annotations=True< / code > to read annotations alongside the annotated values:< / p >
< div class = "highlight" > < pre > < span > < / span > < code > < span class = "o" > > > > < / span > < span class = "n" > d< / span > < span class = "o" > =< / span > < span class = "n" > Parser< / span > < span class = "p" > (< / span > < span class = "s1" > ' 123 " hello" @x []' < / span > < span class = "p" > ,< / span > < span class = "n" > include_annotations< / span > < span class = "o" > =< / span > < span class = "kc" > True< / span > < span class = "p" > )< / span >
< span class = "o" > > > > < / span > < span class = "nb" > list< / span > < span class = "p" > (< / span > < span class = "n" > d< / span > < span class = "p" > )< / span >
< span class = "p" > [< / span > < span class = "mi" > 123< / span > < span class = "p" > ,< / span > < span class = "s1" > ' hello' < / span > < span class = "p" > ,< / span > < span class = "o" > @< / span > < span class = "c1" > #x ()]< / span >
< / code > < / pre > < / div >
< p > If you are incrementally reading from, say, a socket, you can use
< a class = "autorefs autorefs-internal" href = "#preserves.text.Parser.extend" > extend< / a > to add new input as if comes available:< / p >
< div class = "highlight" > < pre > < span > < / span > < code > < span class = "o" > > > > < / span > < span class = "n" > d< / span > < span class = "o" > =< / span > < span class = "n" > Parser< / span > < span class = "p" > (< / span > < span class = "s1" > ' 123 " he' < / span > < span class = "p" > )< / span >
< span class = "o" > > > > < / span > < span class = "n" > d< / span > < span class = "o" > .< / span > < span class = "n" > try_next< / span > < span class = "p" > ()< / span >
< span class = "mi" > 123< / span >
< span class = "o" > > > > < / span > < span class = "n" > d< / span > < span class = "o" > .< / span > < span class = "n" > try_next< / span > < span class = "p" > ()< / span > < span class = "c1" > # returns None because the input is incomplete< / span >
< span class = "o" > > > > < / span > < span class = "n" > d< / span > < span class = "o" > .< / span > < span class = "n" > extend< / span > < span class = "p" > (< / span > < span class = "s1" > ' llo" ' < / span > < span class = "p" > )< / span >
< span class = "o" > > > > < / span > < span class = "n" > d< / span > < span class = "o" > .< / span > < span class = "n" > try_next< / span > < span class = "p" > ()< / span >
< span class = "s1" > ' hello' < / span >
< span class = "o" > > > > < / span > < span class = "n" > d< / span > < span class = "o" > .< / span > < span class = "n" > try_next< / span > < span class = "p" > ()< / span >
< / code > < / pre > < / div >
< p > < strong > Attributes:< / strong > < / p >
< table >
< thead >
< tr >
< th > Name< / th >
< th > Type< / th >
< th > Description< / th >
< / tr >
< / thead >
< tbody >
< tr >
< td > < code > input_buffer< / code > < / td >
< td >
< code > str< / code >
< / td >
< td > < p > buffered input waiting to be processed< / p > < / td >
< / tr >
< tr >
< td > < code > index< / code > < / td >
< td >
< code > int< / code >
< / td >
< td > < p > read position within < code > input_buffer< / code > < / p > < / td >
< / tr >
< / tbody >
< / table >
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< details class = "quote" >
< summary > Source code in < code > preserves/text.py< / code > < / summary >
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< div class = "highlight" > < table class = "highlighttable" > < tr > < td class = "linenos" > < div class = "linenodiv" > < pre > < span > < / span > < span class = "normal" > 132< / span >
< span class = "normal" > 133< / span >
< span class = "normal" > 134< / span >
< span class = "normal" > 135< / span >
< span class = "normal" > 136< / span >
< span class = "normal" > 137< / span > < / pre > < / div > < / td > < td class = "code" > < div > < pre > < span > < / span > < code > < span class = "k" > def< / span > < span class = "fm" > __init__< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ,< / span > < span class = "n" > input_buffer< / span > < span class = "o" > =< / span > < span class = "sa" > u< / span > < span class = "s1" > ' ' < / span > < span class = "p" > ,< / span > < span class = "n" > include_annotations< / span > < span class = "o" > =< / span > < span class = "kc" > False< / span > < span class = "p" > ,< / span > < span class = "n" > parse_embedded< / span > < span class = "o" > =< / span > < span class = "k" > lambda< / span > < span class = "n" > x< / span > < span class = "p" > :< / span > < span class = "n" > x< / span > < span class = "p" > ):< / span >
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< span class = "nb" > super< / span > < span class = "p" > (< / span > < span class = "n" > Parser< / span > < span class = "p" > ,< / span > < span class = "bp" > self< / span > < span class = "p" > )< / span > < span class = "o" > .< / span > < span class = "fm" > __init__< / span > < span class = "p" > ()< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > input_buffer< / span > < span class = "o" > =< / span > < span class = "n" > input_buffer< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > index< / span > < span class = "o" > =< / span > < span class = "mi" > 0< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > include_annotations< / span > < span class = "o" > =< / span > < span class = "n" > include_annotations< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > parse_embedded< / span > < span class = "o" > =< / span > < span class = "n" > parse_embedded< / span >
< / code > < / pre > < / div > < / td > < / tr > < / table > < / div >
< / details >
< div class = "doc doc-children" >
< div class = "doc doc-object doc-function" >
< h3 id = "preserves.text.Parser.extend" class = "doc doc-heading" >
< code class = "highlight language-python" > < span class = "n" > extend< / span > < span class = "p" > (< / span > < span class = "n" > text< / span > < span class = "p" > )< / span > < / code >
< / h3 >
< div class = "doc doc-contents " >
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< p > Appends < code > text< / code > to the remaining contents of < code > self.input_buffer< / code > , trimming already-processed
text from the front of < code > self.input_buffer< / code > and resetting < code > self.index< / code > to zero.< / p >
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< details class = "quote" >
< summary > Source code in < code > preserves/text.py< / code > < / summary >
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< div class = "highlight" > < table class = "highlighttable" > < tr > < td class = "linenos" > < div class = "linenodiv" > < pre > < span > < / span > < span class = "normal" > 139< / span >
< span class = "normal" > 140< / span >
< span class = "normal" > 141< / span >
< span class = "normal" > 142< / span >
< span class = "normal" > 143< / span > < / pre > < / div > < / td > < td class = "code" > < div > < pre > < span > < / span > < code > < span class = "k" > def< / span > < span class = "nf" > extend< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ,< / span > < span class = "n" > text< / span > < span class = "p" > ):< / span >
< span class = "w" > < / span > < span class = "sd" > " " " Appends `text` to the remaining contents of `self.input_buffer`, trimming already-processed< / span >
< span class = "sd" > text from the front of `self.input_buffer` and resetting `self.index` to zero." " " < / span >
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< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > input_buffer< / span > < span class = "o" > =< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > input_buffer< / span > < span class = "p" > [< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > index< / span > < span class = "p" > :]< / span > < span class = "o" > +< / span > < span class = "n" > text< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > index< / span > < span class = "o" > =< / span > < span class = "mi" > 0< / span >
< / code > < / pre > < / div > < / td > < / tr > < / table > < / div >
< / details >
< / div >
< / div >
< div class = "doc doc-object doc-function" >
< h3 id = "preserves.text.Parser.next" class = "doc doc-heading" >
< code class = "highlight language-python" > < span class = "nb" > next< / span > < span class = "p" > ()< / span > < / code >
< / h3 >
< div class = "doc doc-contents " >
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< p > Reads the next complete < code > Value< / code > from the internal buffer, raising
< a class = "autorefs autorefs-internal" href = "../error/#preserves.error.ShortPacket" > ShortPacket< / a > if too few bytes are available, or
< a class = "autorefs autorefs-internal" href = "../error/#preserves.error.DecodeError" > DecodeError< / a > if the input is invalid somehow.< / p >
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< details class = "quote" >
< summary > Source code in < code > preserves/text.py< / code > < / summary >
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< div class = "highlight" > < table class = "highlighttable" > < tr > < td class = "linenos" > < div class = "linenodiv" > < pre > < span > < / span > < span class = "normal" > 320< / span >
< span class = "normal" > 321< / span >
< span class = "normal" > 322< / span >
< span class = "normal" > 323< / span >
< span class = "normal" > 324< / span >
< span class = "normal" > 325< / span >
< span class = "normal" > 326< / span >
< span class = "normal" > 327< / span >
< span class = "normal" > 328< / span >
< span class = "normal" > 329< / span >
< span class = "normal" > 330< / span >
< span class = "normal" > 331< / span >
< span class = "normal" > 332< / span >
< span class = "normal" > 333< / span >
< span class = "normal" > 334< / span >
< span class = "normal" > 335< / span >
< span class = "normal" > 336< / span >
< span class = "normal" > 337< / span >
< span class = "normal" > 338< / span >
< span class = "normal" > 339< / span >
< span class = "normal" > 340< / span >
< span class = "normal" > 341< / span >
< span class = "normal" > 342< / span >
< span class = "normal" > 343< / span >
< span class = "normal" > 344< / span >
< span class = "normal" > 345< / span >
< span class = "normal" > 346< / span >
< span class = "normal" > 347< / span >
< span class = "normal" > 348< / span >
< span class = "normal" > 349< / span >
< span class = "normal" > 350< / span >
< span class = "normal" > 351< / span >
< span class = "normal" > 352< / span >
< span class = "normal" > 353< / span >
< span class = "normal" > 354< / span >
< span class = "normal" > 355< / span >
< span class = "normal" > 356< / span >
< span class = "normal" > 357< / span >
< span class = "normal" > 358< / span >
< span class = "normal" > 359< / span >
< span class = "normal" > 360< / span >
< span class = "normal" > 361< / span >
< span class = "normal" > 362< / span >
< span class = "normal" > 363< / span >
< span class = "normal" > 364< / span >
< span class = "normal" > 365< / span >
< span class = "normal" > 366< / span >
< span class = "normal" > 367< / span >
< span class = "normal" > 368< / span >
< span class = "normal" > 369< / span >
< span class = "normal" > 370< / span >
< span class = "normal" > 371< / span >
< span class = "normal" > 372< / span >
< span class = "normal" > 373< / span >
< span class = "normal" > 374< / span >
< span class = "normal" > 375< / span >
< span class = "normal" > 376< / span >
< span class = "normal" > 377< / span >
< span class = "normal" > 378< / span >
< span class = "normal" > 379< / span >
< span class = "normal" > 380< / span >
< span class = "normal" > 381< / span >
< span class = "normal" > 382< / span >
< span class = "normal" > 383< / span >
< span class = "normal" > 384< / span >
< span class = "normal" > 385< / span >
< span class = "normal" > 386< / span >
< span class = "normal" > 387< / span > < / pre > < / div > < / td > < td class = "code" > < div > < pre > < span > < / span > < code > < span class = "k" > def< / span > < span class = "nf" > next< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ):< / span >
< span class = "w" > < / span > < span class = "sd" > " " " Reads the next complete `Value` from the internal buffer, raising< / span >
< span class = "sd" > [ShortPacket][preserves.error.ShortPacket] if too few bytes are available, or< / span >
< span class = "sd" > [DecodeError][preserves.error.DecodeError] if the input is invalid somehow.< / span >
< span class = "sd" > " " " < / span >
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< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > skip_whitespace< / span > < span class = "p" > ()< / span >
< span class = "n" > c< / span > < span class = "o" > =< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > peek< / span > < span class = "p" > ()< / span >
< span class = "k" > if< / span > < span class = "n" > c< / span > < span class = "o" > ==< / span > < span class = "s1" > ' " ' < / span > < span class = "p" > :< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > skip< / span > < span class = "p" > ()< / span >
< span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > wrap< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > read_string< / span > < span class = "p" > (< / span > < span class = "s1" > ' " ' < / span > < span class = "p" > ))< / span >
< span class = "k" > if< / span > < span class = "n" > c< / span > < span class = "o" > ==< / span > < span class = "s1" > ' |' < / span > < span class = "p" > :< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > skip< / span > < span class = "p" > ()< / span >
< span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > wrap< / span > < span class = "p" > (< / span > < span class = "n" > Symbol< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > read_string< / span > < span class = "p" > (< / span > < span class = "s1" > ' |' < / span > < span class = "p" > )))< / span >
< span class = "k" > if< / span > < span class = "n" > c< / span > < span class = "ow" > in< / span > < span class = "s1" > ' ;@' < / span > < span class = "p" > :< / span >
< span class = "n" > annotations< / span > < span class = "o" > =< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > gather_annotations< / span > < span class = "p" > ()< / span >
< span class = "n" > v< / span > < span class = "o" > =< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > next< / span > < span class = "p" > ()< / span >
< span class = "k" > if< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > include_annotations< / span > < span class = "p" > :< / span >
< span class = "n" > v< / span > < span class = "o" > .< / span > < span class = "n" > annotations< / span > < span class = "o" > =< / span > < span class = "n" > annotations< / span > < span class = "o" > +< / span > < span class = "n" > v< / span > < span class = "o" > .< / span > < span class = "n" > annotations< / span >
< span class = "k" > return< / span > < span class = "n" > v< / span >
< span class = "k" > if< / span > < span class = "n" > c< / span > < span class = "o" > ==< / span > < span class = "s1" > ' :' < / span > < span class = "p" > :< / span >
< span class = "k" > raise< / span > < span class = "n" > DecodeError< / span > < span class = "p" > (< / span > < span class = "s1" > ' Unexpected key/value separator between items' < / span > < span class = "p" > )< / span >
< span class = "k" > if< / span > < span class = "n" > c< / span > < span class = "o" > ==< / span > < span class = "s1" > ' #' < / span > < span class = "p" > :< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > skip< / span > < span class = "p" > ()< / span >
< span class = "n" > c< / span > < span class = "o" > =< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > nextchar< / span > < span class = "p" > ()< / span >
< span class = "k" > if< / span > < span class = "n" > c< / span > < span class = "o" > ==< / span > < span class = "s1" > ' f' < / span > < span class = "p" > :< / span > < span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > wrap< / span > < span class = "p" > (< / span > < span class = "kc" > False< / span > < span class = "p" > )< / span >
< span class = "k" > if< / span > < span class = "n" > c< / span > < span class = "o" > ==< / span > < span class = "s1" > ' t' < / span > < span class = "p" > :< / span > < span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > wrap< / span > < span class = "p" > (< / span > < span class = "kc" > True< / span > < span class = "p" > )< / span >
< span class = "k" > if< / span > < span class = "n" > c< / span > < span class = "o" > ==< / span > < span class = "s1" > ' {' < / span > < span class = "p" > :< / span > < span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > wrap< / span > < span class = "p" > (< / span > < span class = "nb" > frozenset< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > upto< / span > < span class = "p" > (< / span > < span class = "s1" > ' }' < / span > < span class = "p" > )))< / span >
< span class = "k" > if< / span > < span class = "n" > c< / span > < span class = "o" > ==< / span > < span class = "s1" > ' " ' < / span > < span class = "p" > :< / span > < span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > wrap< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > read_literal_binary< / span > < span class = "p" > ())< / span >
< span class = "k" > if< / span > < span class = "n" > c< / span > < span class = "o" > ==< / span > < span class = "s1" > ' x' < / span > < span class = "p" > :< / span >
< span class = "n" > c< / span > < span class = "o" > =< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > nextchar< / span > < span class = "p" > ()< / span >
< span class = "k" > if< / span > < span class = "n" > c< / span > < span class = "o" > ==< / span > < span class = "s1" > ' " ' < / span > < span class = "p" > :< / span > < span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > wrap< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > read_hex_binary< / span > < span class = "p" > ())< / span >
< span class = "k" > if< / span > < span class = "n" > c< / span > < span class = "o" > ==< / span > < span class = "s1" > ' f' < / span > < span class = "p" > :< / span > < span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > wrap< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > read_hex_float< / span > < span class = "p" > (< / span > < span class = "mi" > 4< / span > < span class = "p" > ))< / span >
< span class = "k" > if< / span > < span class = "n" > c< / span > < span class = "o" > ==< / span > < span class = "s1" > ' d' < / span > < span class = "p" > :< / span > < span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > wrap< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > read_hex_float< / span > < span class = "p" > (< / span > < span class = "mi" > 8< / span > < span class = "p" > ))< / span >
< span class = "k" > raise< / span > < span class = "n" > DecodeError< / span > < span class = "p" > (< / span > < span class = "s1" > ' Invalid #x syntax' < / span > < span class = "p" > )< / span >
< span class = "k" > if< / span > < span class = "n" > c< / span > < span class = "o" > ==< / span > < span class = "s1" > ' [' < / span > < span class = "p" > :< / span > < span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > wrap< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > read_base64_binary< / span > < span class = "p" > ())< / span >
< span class = "k" > if< / span > < span class = "n" > c< / span > < span class = "o" > ==< / span > < span class = "s1" > ' =' < / span > < span class = "p" > :< / span >
< span class = "n" > old_ann< / span > < span class = "o" > =< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > include_annotations< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > include_annotations< / span > < span class = "o" > =< / span > < span class = "kc" > True< / span >
< span class = "n" > bs_val< / span > < span class = "o" > =< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > next< / span > < span class = "p" > ()< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > include_annotations< / span > < span class = "o" > =< / span > < span class = "n" > old_ann< / span >
< span class = "k" > if< / span > < span class = "nb" > len< / span > < span class = "p" > (< / span > < span class = "n" > bs_val< / span > < span class = "o" > .< / span > < span class = "n" > annotations< / span > < span class = "p" > )< / span > < span class = "o" > > < / span > < span class = "mi" > 0< / span > < span class = "p" > :< / span >
< span class = "k" > raise< / span > < span class = "n" > DecodeError< / span > < span class = "p" > (< / span > < span class = "s1" > ' Annotations not permitted after #=' < / span > < span class = "p" > )< / span >
< span class = "n" > bs_val< / span > < span class = "o" > =< / span > < span class = "n" > bs_val< / span > < span class = "o" > .< / span > < span class = "n" > item< / span >
< span class = "k" > if< / span > < span class = "ow" > not< / span > < span class = "nb" > isinstance< / span > < span class = "p" > (< / span > < span class = "n" > bs_val< / span > < span class = "p" > ,< / span > < span class = "nb" > bytes< / span > < span class = "p" > ):< / span >
< span class = "k" > raise< / span > < span class = "n" > DecodeError< / span > < span class = "p" > (< / span > < span class = "s1" > ' ByteString must follow #=' < / span > < span class = "p" > )< / span >
< span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > wrap< / span > < span class = "p" > (< / span > < span class = "n" > Decoder< / span > < span class = "p" > (< / span > < span class = "n" > bs_val< / span > < span class = "p" > ,< / span > < span class = "n" > include_annotations< / span > < span class = "o" > =< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > include_annotations< / span > < span class = "p" > )< / span > < span class = "o" > .< / span > < span class = "n" > next< / span > < span class = "p" > ())< / span >
< span class = "k" > if< / span > < span class = "n" > c< / span > < span class = "o" > ==< / span > < span class = "s1" > ' !' < / span > < span class = "p" > :< / span >
< span class = "k" > if< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > parse_embedded< / span > < span class = "ow" > is< / span > < span class = "kc" > None< / span > < span class = "p" > :< / span >
< span class = "k" > raise< / span > < span class = "n" > DecodeError< / span > < span class = "p" > (< / span > < span class = "s1" > ' No parse_embedded function supplied' < / span > < span class = "p" > )< / span >
< span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > wrap< / span > < span class = "p" > (< / span > < span class = "n" > Embedded< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > parse_embedded< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > next< / span > < span class = "p" > ())))< / span >
< span class = "k" > raise< / span > < span class = "n" > DecodeError< / span > < span class = "p" > (< / span > < span class = "s1" > ' Invalid # syntax' < / span > < span class = "p" > )< / span >
< span class = "k" > if< / span > < span class = "n" > c< / span > < span class = "o" > ==< / span > < span class = "s1" > ' < ' < / span > < span class = "p" > :< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > skip< / span > < span class = "p" > ()< / span >
< span class = "n" > vs< / span > < span class = "o" > =< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > upto< / span > < span class = "p" > (< / span > < span class = "s1" > ' > ' < / span > < span class = "p" > )< / span >
< span class = "k" > if< / span > < span class = "nb" > len< / span > < span class = "p" > (< / span > < span class = "n" > vs< / span > < span class = "p" > )< / span > < span class = "o" > ==< / span > < span class = "mi" > 0< / span > < span class = "p" > :< / span >
< span class = "k" > raise< / span > < span class = "n" > DecodeError< / span > < span class = "p" > (< / span > < span class = "s1" > ' Missing record label' < / span > < span class = "p" > )< / span >
< span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > wrap< / span > < span class = "p" > (< / span > < span class = "n" > Record< / span > < span class = "p" > (< / span > < span class = "n" > vs< / span > < span class = "p" > [< / span > < span class = "mi" > 0< / span > < span class = "p" > ],< / span > < span class = "n" > vs< / span > < span class = "p" > [< / span > < span class = "mi" > 1< / span > < span class = "p" > :]))< / span >
< span class = "k" > if< / span > < span class = "n" > c< / span > < span class = "o" > ==< / span > < span class = "s1" > ' [' < / span > < span class = "p" > :< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > skip< / span > < span class = "p" > ()< / span >
< span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > wrap< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > upto< / span > < span class = "p" > (< / span > < span class = "s1" > ' ]' < / span > < span class = "p" > ))< / span >
< span class = "k" > if< / span > < span class = "n" > c< / span > < span class = "o" > ==< / span > < span class = "s1" > ' {' < / span > < span class = "p" > :< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > skip< / span > < span class = "p" > ()< / span >
< span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > wrap< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > read_dictionary< / span > < span class = "p" > ())< / span >
< span class = "k" > if< / span > < span class = "n" > c< / span > < span class = "ow" > in< / span > < span class = "s1" > ' > ]}' < / span > < span class = "p" > :< / span >
< span class = "k" > raise< / span > < span class = "n" > DecodeError< / span > < span class = "p" > (< / span > < span class = "s1" > ' Unexpected ' < / span > < span class = "o" > +< / span > < span class = "n" > c< / span > < span class = "p" > )< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > skip< / span > < span class = "p" > ()< / span >
< span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > wrap< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > read_raw_symbol_or_number< / span > < span class = "p" > ([< / span > < span class = "n" > c< / span > < span class = "p" > ]))< / span >
< / code > < / pre > < / div > < / td > < / tr > < / table > < / div >
< / details >
< / div >
< / div >
< div class = "doc doc-object doc-function" >
< h3 id = "preserves.text.Parser.try_next" class = "doc doc-heading" >
< code class = "highlight language-python" > < span class = "n" > try_next< / span > < span class = "p" > ()< / span > < / code >
< / h3 >
< div class = "doc doc-contents " >
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< p > Like < a class = "autorefs autorefs-internal" href = "#preserves.text.Parser.next" > next< / a > , but returns < code > None< / code > instead of raising
< a class = "autorefs autorefs-internal" href = "../error/#preserves.error.ShortPacket" > ShortPacket< / a > .< / p >
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< details class = "quote" >
< summary > Source code in < code > preserves/text.py< / code > < / summary >
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< div class = "highlight" > < table class = "highlighttable" > < tr > < td class = "linenos" > < div class = "linenodiv" > < pre > < span > < / span > < span class = "normal" > 389< / span >
< span class = "normal" > 390< / span >
< span class = "normal" > 391< / span >
< span class = "normal" > 392< / span >
< span class = "normal" > 393< / span >
< span class = "normal" > 394< / span >
< span class = "normal" > 395< / span >
< span class = "normal" > 396< / span >
< span class = "normal" > 397< / span > < / pre > < / div > < / td > < td class = "code" > < div > < pre > < span > < / span > < code > < span class = "k" > def< / span > < span class = "nf" > try_next< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ):< / span >
< span class = "w" > < / span > < span class = "sd" > " " " Like [next][preserves.text.Parser.next], but returns `None` instead of raising< / span >
< span class = "sd" > [ShortPacket][preserves.error.ShortPacket]." " " < / span >
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< span class = "n" > start< / span > < span class = "o" > =< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > index< / span >
< span class = "k" > try< / span > < span class = "p" > :< / span >
< span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > next< / span > < span class = "p" > ()< / span >
< span class = "k" > except< / span > < span class = "n" > ShortPacket< / span > < span class = "p" > :< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > index< / span > < span class = "o" > =< / span > < span class = "n" > start< / span >
< span class = "k" > return< / span > < span class = "kc" > None< / span >
< / code > < / pre > < / div > < / td > < / tr > < / table > < / div >
< / details >
< / div >
< / div >
< / div >
< / div >
< / div >
< div class = "doc doc-object doc-function" >
< h2 id = "preserves.text.parse" class = "doc doc-heading" >
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< code class = "highlight language-python" > < span class = "n" > parse< / span > < span class = "p" > (< / span > < span class = "n" > text< / span > < span class = "p" > ,< / span > < span class = "o" > **< / span > < span class = "n" > kwargs< / span > < span class = "p" > )< / span > < / code >
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< / h2 >
< div class = "doc doc-contents " >
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< p > Yields the first complete encoded value from < code > text< / code > , passing < code > kwargs< / code > through to the
< a class = "autorefs autorefs-internal" href = "#preserves.text.Parser" > Parser< / a > constructor. Raises exceptions as per
< a class = "autorefs autorefs-internal" href = "#preserves.text.Parser.next" > next< / a > .< / p >
< p > < strong > Parameters:< / strong > < / p >
< table >
< thead >
< tr >
< th > Name< / th >
< th > Type< / th >
< th > Description< / th >
< th > Default< / th >
< / tr >
< / thead >
< tbody >
< tr >
< td > < code > text< / code > < / td >
< td >
< code > str< / code >
< / td >
< td > < p > encoded data to decode< / p > < / td >
< td >
< em > required< / em >
< / td >
< / tr >
< / tbody >
< / table >
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< details class = "quote" >
< summary > Source code in < code > preserves/text.py< / code > < / summary >
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< div class = "highlight" > < table class = "highlighttable" > < tr > < td class = "linenos" > < div class = "linenodiv" > < pre > < span > < / span > < span class = "normal" > 408< / span >
< span class = "normal" > 409< / span >
< span class = "normal" > 410< / span >
< span class = "normal" > 411< / span >
< span class = "normal" > 412< / span >
< span class = "normal" > 413< / span >
< span class = "normal" > 414< / span >
< span class = "normal" > 415< / span >
< span class = "normal" > 416< / span >
< span class = "normal" > 417< / span > < / pre > < / div > < / td > < td class = "code" > < div > < pre > < span > < / span > < code > < span class = "k" > def< / span > < span class = "nf" > parse< / span > < span class = "p" > (< / span > < span class = "n" > text< / span > < span class = "p" > ,< / span > < span class = "o" > **< / span > < span class = "n" > kwargs< / span > < span class = "p" > ):< / span >
< span class = "w" > < / span > < span class = "sd" > " " " Yields the first complete encoded value from `text`, passing `kwargs` through to the< / span >
< span class = "sd" > [Parser][preserves.text.Parser] constructor. Raises exceptions as per< / span >
< span class = "sd" > [next][preserves.text.Parser.next].< / span >
< span class = "sd" > Args:< / span >
< span class = "sd" > text (str): encoded data to decode< / span >
< span class = "sd" > " " " < / span >
< span class = "k" > return< / span > < span class = "n" > Parser< / span > < span class = "p" > (< / span > < span class = "n" > input_buffer< / span > < span class = "o" > =< / span > < span class = "n" > text< / span > < span class = "p" > ,< / span > < span class = "o" > **< / span > < span class = "n" > kwargs< / span > < span class = "p" > )< / span > < span class = "o" > .< / span > < span class = "n" > next< / span > < span class = "p" > ()< / span >
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< / code > < / pre > < / div > < / td > < / tr > < / table > < / div >
< / details >
< / div >
< / div >
< div class = "doc doc-object doc-function" >
< h2 id = "preserves.text.parse_with_annotations" class = "doc doc-heading" >
< code class = "highlight language-python" > < span class = "n" > parse_with_annotations< / span > < span class = "p" > (< / span > < span class = "n" > bs< / span > < span class = "p" > ,< / span > < span class = "o" > **< / span > < span class = "n" > kwargs< / span > < span class = "p" > )< / span > < / code >
< / h2 >
< div class = "doc doc-contents " >
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< p > Like < a class = "autorefs autorefs-internal" href = "#preserves.text.parse" > parse< / a > , but supplying < code > include_annotations=True< / code > to the
< a class = "autorefs autorefs-internal" href = "#preserves.text.Parser" > Parser< / a > constructor.< / p >
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< details class = "quote" >
< summary > Source code in < code > preserves/text.py< / code > < / summary >
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< div class = "highlight" > < table class = "highlighttable" > < tr > < td class = "linenos" > < div class = "linenodiv" > < pre > < span > < / span > < span class = "normal" > 419< / span >
< span class = "normal" > 420< / span >
< span class = "normal" > 421< / span >
< span class = "normal" > 422< / span > < / pre > < / div > < / td > < td class = "code" > < div > < pre > < span > < / span > < code > < span class = "k" > def< / span > < span class = "nf" > parse_with_annotations< / span > < span class = "p" > (< / span > < span class = "n" > bs< / span > < span class = "p" > ,< / span > < span class = "o" > **< / span > < span class = "n" > kwargs< / span > < span class = "p" > ):< / span >
< span class = "w" > < / span > < span class = "sd" > " " " Like [parse][preserves.text.parse], but supplying `include_annotations=True` to the< / span >
< span class = "sd" > [Parser][preserves.text.Parser] constructor." " " < / span >
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< span class = "k" > return< / span > < span class = "n" > Parser< / span > < span class = "p" > (< / span > < span class = "n" > input_buffer< / span > < span class = "o" > =< / span > < span class = "n" > bs< / span > < span class = "p" > ,< / span > < span class = "n" > include_annotations< / span > < span class = "o" > =< / span > < span class = "kc" > True< / span > < span class = "p" > ,< / span > < span class = "o" > **< / span > < span class = "n" > kwargs< / span > < span class = "p" > )< / span > < span class = "o" > .< / span > < span class = "n" > next< / span > < span class = "p" > ()< / span >
< / code > < / pre > < / div > < / td > < / tr > < / table > < / div >
< / details >
< / div >
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< div class = "doc doc-object doc-function" >
< h2 id = "preserves.text.stringify" class = "doc doc-heading" >
< code class = "highlight language-python" > < span class = "n" > stringify< / span > < span class = "p" > (< / span > < span class = "n" > v< / span > < span class = "p" > ,< / span > < span class = "o" > **< / span > < span class = "n" > kwargs< / span > < span class = "p" > )< / span > < / code >
< / h2 >
< div class = "doc doc-contents " >
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< p > Convert a single < code > Value< / code > < code > v< / code > to a string. Any supplied < code > kwargs< / code > are passed on to the
underlying < a class = "autorefs autorefs-internal" href = "#preserves.text.Formatter" > Formatter< / a > constructor.< / p >
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< details class = "quote" >
< summary > Source code in < code > preserves/text.py< / code > < / summary >
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< div class = "highlight" > < table class = "highlighttable" > < tr > < td class = "linenos" > < div class = "linenodiv" > < pre > < span > < / span > < span class = "normal" > 606< / span >
< span class = "normal" > 607< / span >
< span class = "normal" > 608< / span >
< span class = "normal" > 609< / span >
< span class = "normal" > 610< / span >
< span class = "normal" > 611< / span > < / pre > < / div > < / td > < td class = "code" > < div > < pre > < span > < / span > < code > < span class = "k" > def< / span > < span class = "nf" > stringify< / span > < span class = "p" > (< / span > < span class = "n" > v< / span > < span class = "p" > ,< / span > < span class = "o" > **< / span > < span class = "n" > kwargs< / span > < span class = "p" > ):< / span >
< span class = "w" > < / span > < span class = "sd" > " " " Convert a single `Value` `v` to a string. Any supplied `kwargs` are passed on to the< / span >
< span class = "sd" > underlying [Formatter][preserves.text.Formatter] constructor." " " < / span >
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< span class = "n" > e< / span > < span class = "o" > =< / span > < span class = "n" > Formatter< / span > < span class = "p" > (< / span > < span class = "o" > **< / span > < span class = "n" > kwargs< / span > < span class = "p" > )< / span >
< span class = "n" > e< / span > < span class = "o" > .< / span > < span class = "n" > append< / span > < span class = "p" > (< / span > < span class = "n" > v< / span > < span class = "p" > )< / span >
< span class = "k" > return< / span > < span class = "n" > e< / span > < span class = "o" > .< / span > < span class = "n" > contents< / span > < span class = "p" > ()< / span >
< / code > < / pre > < / div > < / td > < / tr > < / table > < / div >
< / details >
< / div >
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< hr >
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Last update:
< span class = "git-revision-date-localized-plugin git-revision-date-localized-plugin-date" > March 16, 2023< / span >
< br >
Created:
< span class = "git-revision-date-localized-plugin git-revision-date-localized-plugin-date" > March 16, 2023< / span >
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