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88 lines
2.7 KiB
YAML
88 lines
2.7 KiB
YAML
filetype: B
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detect:
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filename: '\.b$'
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# core control words + storage classes (Thompson B-ish)
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signature: '\b(if|else|while|switch|case|default|break|return|goto|extrn|auto)\b'
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rules:
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# -------------------------
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# Comments (B: /* ... */)
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# -------------------------
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- comment:
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start: '/\*'
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end: '\*/'
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rules: []
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# Optional: // line comments (convenient, not “original” B)
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- comment:
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start: '//'
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end: '$'
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rules: []
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# -------------------------
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# Strings + escapes
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# -------------------------
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- constant.string:
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start: '"'
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end: '"'
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skip: '\\\\.'
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rules:
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# common escapes: \n \t \e \r \0 \" \\ \( \) \*
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- constant.specialChar: '\\\\([0netr"\\\\\\*\\(\\)])'
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# printf-ish: %s %c %d %o and %%
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- constant.specialChar: '%(%|[scdo])'
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- constant.string:
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start: "'"
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end: "'"
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skip: '\\\\.'
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rules:
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- constant.specialChar: '\\\\([0netr"\\\\\\*\\(\\)])'
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- constant.specialChar: '%(%|[scdo])'
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# -------------------------
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# Numbers
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# (leading 0 commonly used for octal constants)
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# -------------------------
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- constant.number: '\b0[0-7]+\b'
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- constant.number: '\b[0-9]+\b'
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# -------------------------
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# Keywords / storage (keep tight + old-school)
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# -------------------------
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- statement: '\b(if|else|while|switch|case|default|break|return|goto)\b'
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- type: '\b(extrn|auto)\b'
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# -------------------------
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# Common B library calls (/etc/libb.a era list)
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# -------------------------
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- constant.builtin: '\b(char|getchr|putchr|exit|printf|seek|setuid|stat|time|unlink|wait|lchar|chdir|chmod|chown|close|creat|execl|execv|fork|fstat|getuid|intr|link|makdir|open|read|write|ctime)\b'
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# -------------------------
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# Labels and function-ish identifiers
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# -------------------------
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# label (often at bol)
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- identifier: '^\s*[_A-Za-z][_A-Za-z0-9]*\s*:'
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# function call/def name before '('
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- identifier: '\b[_A-Za-z][_A-Za-z0-9]*\s*\('
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# -------------------------
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# Operators (order matters: longer first)
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# Thompson-ish assignment operators in B are =+, =-, =*, =/, =%, =<<, =>>, =& , =|
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# -------------------------
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- symbol.operator: '(=<<|=>>|=\+|=-|=\*|=/|=%|=&|=\|)'
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- symbol.operator: '(==|!=|<=|>=|<<|>>)'
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- symbol.operator: '(\+\+|--|\*\*)'
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- symbol.operator: '[-+*/%&|^~!=<>?:=]'
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# -------------------------
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# Brackets
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# -------------------------
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- symbol.brackets: '[(){}\[\]]'
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# -------------------------
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# Identifiers / variables (last so keywords win)
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# -------------------------
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- identifier: '\b[_A-Za-z][_A-Za-z0-9]*\b'
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