I try define iniFile grammer(keys contains few subvalues).
I defined it from C# Regex:
Regex commentLine = new Regex(@"^\s*#(?<comment>.*)", RegexOptions.Compiled);
Regex sectionLine = new Regex(@"^\s*\[(?<section>.*)\].*",
RegexOptions.Compiled);
//Regex recordLine = new
Regex(@"^\s*(?<key>[^#[=\s]+)\s*=?\s*(?<values>[^#]*)(#(?<comment>.*))?",
RegexOptions.Compiled);
Regex recordLine2 = new
Regex(@"^\s*(?<key>[^#[=\s]+)\s*=?\s*((?<value>[^;\#]*);)*(?<endValue>[^;\#]*[^;\s\#]+)?\s*(#(?<comment>.*))?",
RegexOptions.Compiled);
foreach(var c in recordLine2.Math(string).Groups["value"].Captures)
//access to each value of key
Sample ini struct:
#comment
[section]
key1
key2=
key3= # this and earlier lines contains 0 values
key4=a# 1 values
key5=;# 1 empty values
key6=a;f # 2 values
key7= a ; f;; # 3 values
[section2]
..
But I don't know how implement endValue(without semicolon) and get lot of
warnings from my grammer.
This grammer return wrong parse tree([section2] as keyLine).
I testet grammer in ANTLRWork 1.4.3
grammar test;
WS : (' '|'\t') {$channel=HIDDEN;};
EOL : ('\r\n'|'\n'|'\r') ;
SHARP : '#' {System.out.println("#");};
EQUAL : '=' {System.out.println("=");};
SEMICOLON : ';' {System.out.println(";");};
COMMENT : SHARP .* EOL ;//{System.out.println("COM");};
SECTION : '[' .* ']' {System.out.println("SEC");};
ANY : . {System.out.println("ANY");};
iniFile
: section* EOF;
section
: commentLine* sectionLine COMMENT* (keyLine COMMENT?)*;
commentLine
: COMMENT;
sectionLine
: SECTION (EOL|COMMENT);
keyLine
: key keyValues* (EOL|COMMENT);
key
: ~('='|'#'|'['|EOL)+ {System.out.println("key");};
keyValues
: '=' (keyValue';')*;
keyValue: ~(';'|'#'|EOL)* ;
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