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Parser

Tutorials

  • Building Language Front-Ends
  • Inside CodeAnalysis - How CodeStructure Parses C
  • Design and Compilation Strategy
  • Implementing the LaTeX Math Parser
  • MaTeX Comparison Showcase
  • The Parser Landscape - a Survey of What Exists Today
  • The Parser Zoo - language front-ends over a shared algebra
  • Parsing BNF Grammars (and bootstrapping a TPTP parser)
  • Parsing GrammarRules Locally
  • A Markdown Inline Parser in Parser Combinators
  • ParsingOpenQASM
  • Parsing TPTP, Auto-Generated from the Published BNF
  • PrattVsPEG
  • The Wolfram Box Typesetting Reference

Guides

  • Parsing in the Wolfram Language

Symbols

  • ASTAddSource
  • ASTAlgebra
  • ASTContainer
  • ASTLeafQ
  • ASTNodeQ
  • ASTStripSource
  • BinaryNode
  • BrainfuckAST
  • BrainfuckGrammar
  • BrainfuckRun
  • BrainfuckSemantic
  • CalculatorAST
  • CalculatorEval
  • CalculatorGrammar
  • CalculatorSemantic
  • CallNode
  • ContainerNode
  • EBNFParse
  • EBNFRules
  • ErrorNode
  • ExportLaTeX
  • GroupNode
  • InfixNode
  • JSONAST
  • JSONGrammar
  • JSONImport
  • JSONSemantic
  • LambdaAST
  • LambdaEval
  • LambdaGrammar
  • LambdaSemantic
  • LaTeXMathParse
  • LaTeXMathParser
  • LaTeXMathStyle
  • LeafNode
  • LispAST
  • LispGrammar
  • LispRead
  • LispSemantic
  • LispSymbol
  • MarkdownInlineParse
  • MarkdownInlineParser
  • MarkdownParse
  • MarkdownParser
  • ParseAction
  • ParseBetween
  • ParseChainLeft
  • ParseChainRight
  • ParseCharacter
  • ParseChoiceLongest
  • ParseChoice
  • ParseFail
  • ParseLiteral
  • ParseLookahead
  • ParseMany
  • Parse
  • ParseNotFollowedBy
  • ParseOperatorTable
  • ParseOptional
  • ParsePartial
  • ParsePosition
  • ParserCombinator
  • ParserCombinatorQ
  • ParserCompile
  • ParseRecursive
  • ParseRegex
  • ParseSepBy1
  • ParseSepBy
  • ParseSequence
  • ParseSome
  • ParseSucceed
  • ParseTry
  • PostfixNode
  • PrefixNode
  • RecCell
  • RecRef
  • SetRec
  • SpannedToken
  • TernaryNode
  • ToCodeParser
  • TPTPExport
  • TPTPImport

Overviews

  • WolframParser
Wolfram`Parser`
MarkdownParser
​
MarkdownParser
is the
ParserCombinator
implementing the block-level markdown-document grammar — the reusable parser object behind
MarkdownParse
.
​
​
Parse
[MarkdownParser,source]
runs that grammar on the
String
source, returning the same document
Association
as
MarkdownParse
— the frontmatter under
"Metadata"
and the typed block list under
"Blocks"
.
​
Details and Options
▪
MarkdownParser
is an ordinary
ParserCombinator
value:
Head
[MarkdownParser]
is
ParserCombinator
and its combinator type is
"Action"
(a
ParseAction
wrapping the block grammar).
▪
The grammar is optional frontmatter followed by a sequence of blocks — heading, code fence, thematic break, or prose — the same block shapes
MarkdownParse
documents.
▪
Being a
ParserCombinator
, it is callable via a
SubValues
rule:
MarkdownParser
[source]
is
Parse
[MarkdownParser,source]
.
▪
One object serves any number of inputs. Bind it once and run it repeatedly, rather than reconstructing a parser per call.
▪
As a
ParserCombinator
it can be composed with the
Parse*
constructors and lowered with
ParserCompile
like any other parser.
▪
The line-based grammar expects source to end in a newline;
MarkdownParser
does not add one.
MarkdownParse
is the one-shot wrapper that appends a trailing newline (if missing) and then calls
Parse
, so it accepts input the raw object would reject.
▪
With a trailing newline present,
Parse
[MarkdownParser,source]
and
MarkdownParse
[source]
return the identical
Association
.
​
Examples  
(6)
Basic Examples  
(1)
MarkdownParser
is a parser object — a
ParserCombinator
— not a function to call directly:
In[1]:=
MarkdownParser
Out[1]=
ParserCombinator
Type: Action
Arity: 2
Compiled: False

Its head is
ParserCombinator
, the wrapper every parser in the library normalises to:
In[2]:=
Head
MarkdownParser

Out[2]=
ParserCombinator
Run it with
Parse
against a document string ending in a newline:
In[3]:=
Parse

MarkdownParser
,"# Title"
Out[3]=
Metadata,Blocks{TypeHeading,Level1,TextTitle}
Scope  
(2)

Properties & Relations  
(2)

Possible Issues  
(1)

SeeAlso
MarkdownParse
 
▪
MarkdownInlineParser
 
▪
MarkdownInlineParse
 
▪
Parse
 
▪
ParserCombinator
 
▪
ParserCompile
RelatedGuides
▪
Parsing in the Wolfram Language
""

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