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Diffstat (limited to 'src/libgit2/userdiff.h')
| -rw-r--r-- | src/libgit2/userdiff.h | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/src/libgit2/userdiff.h b/src/libgit2/userdiff.h new file mode 100644 index 000000000..c9a80d712 --- /dev/null +++ b/src/libgit2/userdiff.h @@ -0,0 +1,210 @@ +/* + * Copyright (C) the libgit2 contributors. All rights reserved. + * + * This file is part of libgit2, distributed under the GNU GPL v2 with + * a Linking Exception. For full terms see the included COPYING file. + */ +#ifndef INCLUDE_userdiff_h__ +#define INCLUDE_userdiff_h__ + +#include "regexp.h" + +/* + * This file isolates the built in diff driver function name patterns. + * Most of these patterns are taken from Git (with permission from the + * original authors for relicensing to libgit2). + */ + +typedef struct { + const char *name; + const char *fns; + const char *words; + int flags; +} git_diff_driver_definition; + +#define WORD_DEFAULT "|[^[:space:]]|[\xc0-\xff][\x80-\xbf]+" + +/* + * These builtin driver definition macros have same signature as in core + * git userdiff.c so that the data can be extracted verbatim + */ +#define PATTERNS(NAME, FN_PATS, WORD_PAT) \ + { NAME, FN_PATS, WORD_PAT WORD_DEFAULT, 0 } +#define IPATTERN(NAME, FN_PATS, WORD_PAT) \ + { NAME, FN_PATS, WORD_PAT WORD_DEFAULT, GIT_REGEXP_ICASE } + +/* + * The table of diff driver patterns + * + * Function name patterns are a list of newline separated patterns that + * match a function declaration (i.e. the line you want in the hunk header), + * or a negative pattern prefixed with a '!' to reject a pattern (such as + * rejecting goto labels in C code). + * + * Word boundary patterns are just a simple pattern that will be OR'ed with + * the default value above (i.e. whitespace or non-ASCII characters). + */ +static git_diff_driver_definition builtin_defs[] = { + +IPATTERN("ada", + "!^(.*[ \t])?(is[ \t]+new|renames|is[ \t]+separate)([ \t].*)?$\n" + "!^[ \t]*with[ \t].*$\n" + "^[ \t]*((procedure|function)[ \t]+.*)$\n" + "^[ \t]*((package|protected|task)[ \t]+.*)$", + /* -- */ + "[a-zA-Z][a-zA-Z0-9_]*" + "|[-+]?[0-9][0-9#_.aAbBcCdDeEfF]*([eE][+-]?[0-9_]+)?" + "|=>|\\.\\.|\\*\\*|:=|/=|>=|<=|<<|>>|<>"), + +IPATTERN("fortran", + "!^([C*]|[ \t]*!)\n" + "!^[ \t]*MODULE[ \t]+PROCEDURE[ \t]\n" + "^[ \t]*((END[ \t]+)?(PROGRAM|MODULE|BLOCK[ \t]+DATA" + "|([^'\" \t]+[ \t]+)*(SUBROUTINE|FUNCTION))[ \t]+[A-Z].*)$", + /* -- */ + "[a-zA-Z][a-zA-Z0-9_]*" + "|\\.([Ee][Qq]|[Nn][Ee]|[Gg][TtEe]|[Ll][TtEe]|[Tt][Rr][Uu][Ee]|[Ff][Aa][Ll][Ss][Ee]|[Aa][Nn][Dd]|[Oo][Rr]|[Nn]?[Ee][Qq][Vv]|[Nn][Oo][Tt])\\." + /* numbers and format statements like 2E14.4, or ES12.6, 9X. + * Don't worry about format statements without leading digits since + * they would have been matched above as a variable anyway. */ + "|[-+]?[0-9.]+([AaIiDdEeFfLlTtXx][Ss]?[-+]?[0-9.]*)?(_[a-zA-Z0-9][a-zA-Z0-9_]*)?" + "|//|\\*\\*|::|[/<>=]="), + +PATTERNS("html", "^[ \t]*(<[Hh][1-6][ \t].*>.*)$", + "[^<>= \t]+"), + +PATTERNS("java", + "!^[ \t]*(catch|do|for|if|instanceof|new|return|switch|throw|while)\n" + "^[ \t]*(([A-Za-z_][A-Za-z_0-9]*[ \t]+)+[A-Za-z_][A-Za-z_0-9]*[ \t]*\\([^;]*)$", + /* -- */ + "[a-zA-Z_][a-zA-Z0-9_]*" + "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" + "|[-+*/<>%&^|=!]=" + "|--|\\+\\+|<<=?|>>>?=?|&&|\\|\\|"), + +PATTERNS("matlab", + "^[[:space:]]*((classdef|function)[[:space:]].*)$|^%%[[:space:]].*$", + "[a-zA-Z_][a-zA-Z0-9_]*|[-+0-9.e]+|[=~<>]=|\\.[*/\\^']|\\|\\||&&"), + +PATTERNS("objc", + /* Negate C statements that can look like functions */ + "!^[ \t]*(do|for|if|else|return|switch|while)\n" + /* Objective-C methods */ + "^[ \t]*([-+][ \t]*\\([ \t]*[A-Za-z_][A-Za-z_0-9* \t]*\\)[ \t]*[A-Za-z_].*)$\n" + /* C functions */ + "^[ \t]*(([A-Za-z_][A-Za-z_0-9]*[ \t]+)+[A-Za-z_][A-Za-z_0-9]*[ \t]*\\([^;]*)$\n" + /* Objective-C class/protocol definitions */ + "^(@(implementation|interface|protocol)[ \t].*)$", + /* -- */ + "[a-zA-Z_][a-zA-Z0-9_]*" + "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" + "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->"), + +PATTERNS("pascal", + "^(((class[ \t]+)?(procedure|function)|constructor|destructor|interface|" + "implementation|initialization|finalization)[ \t]*.*)$" + "\n" + "^(.*=[ \t]*(class|record).*)$", + /* -- */ + "[a-zA-Z_][a-zA-Z0-9_]*" + "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+" + "|<>|<=|>=|:=|\\.\\."), + +PATTERNS("perl", + "^package .*\n" + "^sub [[:alnum:]_':]+[ \t]*" + "(\\([^)]*\\)[ \t]*)?" /* prototype */ + /* + * Attributes. A regex can't count nested parentheses, + * so just slurp up whatever we see, taking care not + * to accept lines like "sub foo; # defined elsewhere". + * + * An attribute could contain a semicolon, but at that + * point it seems reasonable enough to give up. + */ + "(:[^;#]*)?" + "(\\{[ \t]*)?" /* brace can come here or on the next line */ + "(#.*)?$\n" /* comment */ + "^(BEGIN|END|INIT|CHECK|UNITCHECK|AUTOLOAD|DESTROY)[ \t]*" + "(\\{[ \t]*)?" /* brace can come here or on the next line */ + "(#.*)?$\n" + "^=head[0-9] .*", /* POD */ + /* -- */ + "[[:alpha:]_'][[:alnum:]_']*" + "|0[xb]?[0-9a-fA-F_]*" + /* taking care not to interpret 3..5 as (3.)(.5) */ + "|[0-9a-fA-F_]+(\\.[0-9a-fA-F_]+)?([eE][-+]?[0-9_]+)?" + "|=>|-[rwxoRWXOezsfdlpSugkbctTBMAC>]|~~|::" + "|&&=|\\|\\|=|//=|\\*\\*=" + "|&&|\\|\\||//|\\+\\+|--|\\*\\*|\\.\\.\\.?" + "|[-+*/%.^&<>=!|]=" + "|=~|!~" + "|<<|<>|<=>|>>"), + +PATTERNS("python", "^[ \t]*((class|def)[ \t].*)$", + /* -- */ + "[a-zA-Z_][a-zA-Z0-9_]*" + "|[-+0-9.e]+[jJlL]?|0[xX]?[0-9a-fA-F]+[lL]?" + "|[-+*/<>%&^|=!]=|//=?|<<=?|>>=?|\\*\\*=?"), + +PATTERNS("ruby", "^[ \t]*((class|module|def)[ \t].*)$", + /* -- */ + "(@|@@|\\$)?[a-zA-Z_][a-zA-Z0-9_]*" + "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+|\\?(\\\\C-)?(\\\\M-)?." + "|//=?|[-+*/<>%&^|=!]=|<<=?|>>=?|===|\\.{1,3}|::|[!=]~"), + +PATTERNS("bibtex", "(@[a-zA-Z]{1,}[ \t]*\\{{0,1}[ \t]*[^ \t\"@',\\#}{~%]*).*$", + "[={}\"]|[^={}\" \t]+"), + +PATTERNS("tex", "^(\\\\((sub)*section|chapter|part)\\*{0,1}\\{.*)$", + "\\\\[a-zA-Z@]+|\\\\.|[a-zA-Z0-9\x80-\xff]+"), + +PATTERNS("cpp", + /* Jump targets or access declarations */ + "!^[ \t]*[A-Za-z_][A-Za-z_0-9]*:[[:space:]]*($|/[/*])\n" + /* functions/methods, variables, and compounds at top level */ + "^((::[[:space:]]*)?[A-Za-z_].*)$", + /* -- */ + "[a-zA-Z_][a-zA-Z0-9_]*" + "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lLuU]*" + "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->\\*?|\\.\\*"), + +PATTERNS("csharp", + /* Keywords */ + "!^[ \t]*(do|while|for|if|else|instanceof|new|return|switch|case|throw|catch|using)\n" + /* Methods and constructors */ + "^[ \t]*(((static|public|internal|private|protected|new|virtual|sealed|override|unsafe)[ \t]+)*[][<>@.~_[:alnum:]]+[ \t]+[<>@._[:alnum:]]+[ \t]*\\(.*\\))[ \t]*$\n" + /* Properties */ + "^[ \t]*(((static|public|internal|private|protected|new|virtual|sealed|override|unsafe)[ \t]+)*[][<>@.~_[:alnum:]]+[ \t]+[@._[:alnum:]]+)[ \t]*$\n" + /* Type definitions */ + "^[ \t]*(((static|public|internal|private|protected|new|unsafe|sealed|abstract|partial)[ \t]+)*(class|enum|interface|struct)[ \t]+.*)$\n" + /* Namespace */ + "^[ \t]*(namespace[ \t]+.*)$", + /* -- */ + "[a-zA-Z_][a-zA-Z0-9_]*" + "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" + "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->"), + +PATTERNS("php", + "^[ \t]*(((public|private|protected|static|final)[ \t]+)*((class|function)[ \t].*))$", + /* -- */ + "[a-zA-Z_][a-zA-Z0-9_]*" + "|[-+0-9.e]+[fFlL]?|0[xX]?[0-9a-fA-F]+[lL]?" + "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->"), + +PATTERNS("javascript", + "([a-zA-Z_$][a-zA-Z0-9_$]*(\\.[a-zA-Z0-9_$]+)*[ \t]*=[ \t]*function([ \t][a-zA-Z_$][a-zA-Z0-9_$]*)?[^\\{]*)\n" + "([a-zA-Z_$][a-zA-Z0-9_$]*[ \t]*:[ \t]*function([ \t][a-zA-Z_$][a-zA-Z0-9_$]*)?[^\\{]*)\n" + "[^a-zA-Z0-9_\\$](function([ \t][a-zA-Z_$][a-zA-Z0-9_$]*)?[^\\{]*)", + /* -- */ + "[a-zA-Z_][a-zA-Z0-9_]*" + "|[-+0-9.e]+[fFlL]?|0[xX]?[0-9a-fA-F]+[lL]?" + "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->"), +}; + +#undef IPATTERN +#undef PATTERNS +#undef WORD_DEFAULT + +#endif + |