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347 lines
11 KiB
347 lines
11 KiB
#include "cache.h" |
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#include "config.h" |
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#include "userdiff.h" |
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#include "attr.h" |
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|
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static struct userdiff_driver *drivers; |
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static int ndrivers; |
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static int drivers_alloc; |
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|
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#define PATTERNS(name, pattern, word_regex) \ |
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{ name, NULL, -1, { pattern, REG_EXTENDED }, \ |
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word_regex "|[^[:space:]]|[\xc0-\xff][\x80-\xbf]+" } |
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#define IPATTERN(name, pattern, word_regex) \ |
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{ name, NULL, -1, { pattern, REG_EXTENDED | REG_ICASE }, \ |
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word_regex "|[^[:space:]]|[\xc0-\xff][\x80-\xbf]+" } |
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static struct userdiff_driver builtin_drivers[] = { |
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IPATTERN("ada", |
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"!^(.*[ \t])?(is[ \t]+new|renames|is[ \t]+separate)([ \t].*)?$\n" |
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"!^[ \t]*with[ \t].*$\n" |
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"^[ \t]*((procedure|function)[ \t]+.*)$\n" |
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"^[ \t]*((package|protected|task)[ \t]+.*)$", |
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/* -- */ |
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"[a-zA-Z][a-zA-Z0-9_]*" |
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"|[-+]?[0-9][0-9#_.aAbBcCdDeEfF]*([eE][+-]?[0-9_]+)?" |
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"|=>|\\.\\.|\\*\\*|:=|/=|>=|<=|<<|>>|<>"), |
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PATTERNS("dts", |
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"!;\n" |
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"!=\n" |
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/* lines beginning with a word optionally preceded by '&' or the root */ |
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"^[ \t]*((/[ \t]*\\{|&?[a-zA-Z_]).*)", |
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/* -- */ |
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/* Property names and math operators */ |
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"[a-zA-Z0-9,._+?#-]+" |
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"|[-+*/%&^|!~]|>>|<<|&&|\\|\\|"), |
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PATTERNS("elixir", |
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"^[ \t]*((def(macro|module|impl|protocol|p)?|test)[ \t].*)$", |
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/* -- */ |
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/* Atoms, names, and module attributes */ |
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"[@:]?[a-zA-Z0-9@_?!]+" |
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/* Numbers with specific base */ |
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"|[-+]?0[xob][0-9a-fA-F]+" |
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/* Numbers */ |
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"|[-+]?[0-9][0-9_.]*([eE][-+]?[0-9_]+)?" |
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/* Operators and atoms that represent them */ |
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"|:?(\\+\\+|--|\\.\\.|~~~|<>|\\^\\^\\^|<?\\|>|<<<?|>?>>|<<?~|~>?>|<~>|<=|>=|===?|!==?|=~|&&&?|\\|\\|\\|?|=>|<-|\\\\\\\\|->)" |
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/* Not real operators, but should be grouped */ |
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"|:?%[A-Za-z0-9_.]\\{\\}?"), |
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IPATTERN("fortran", |
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"!^([C*]|[ \t]*!)\n" |
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"!^[ \t]*MODULE[ \t]+PROCEDURE[ \t]\n" |
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"^[ \t]*((END[ \t]+)?(PROGRAM|MODULE|BLOCK[ \t]+DATA" |
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"|([^'\" \t]+[ \t]+)*(SUBROUTINE|FUNCTION))[ \t]+[A-Z].*)$", |
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/* -- */ |
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"[a-zA-Z][a-zA-Z0-9_]*" |
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"|\\.([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])\\." |
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/* numbers and format statements like 2E14.4, or ES12.6, 9X. |
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* Don't worry about format statements without leading digits since |
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* they would have been matched above as a variable anyway. */ |
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"|[-+]?[0-9.]+([AaIiDdEeFfLlTtXx][Ss]?[-+]?[0-9.]*)?(_[a-zA-Z0-9][a-zA-Z0-9_]*)?" |
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"|//|\\*\\*|::|[/<>=]="), |
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IPATTERN("fountain", "^((\\.[^.]|(int|ext|est|int\\.?/ext|i/e)[. ]).*)$", |
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"[^ \t-]+"), |
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PATTERNS("golang", |
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/* Functions */ |
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"^[ \t]*(func[ \t]*.*(\\{[ \t]*)?)\n" |
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/* Structs and interfaces */ |
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"^[ \t]*(type[ \t].*(struct|interface)[ \t]*(\\{[ \t]*)?)", |
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/* -- */ |
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"[a-zA-Z_][a-zA-Z0-9_]*" |
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"|[-+0-9.eE]+i?|0[xX]?[0-9a-fA-F]+i?" |
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"|[-+*/<>%&^|=!:]=|--|\\+\\+|<<=?|>>=?|&\\^=?|&&|\\|\\||<-|\\.{3}"), |
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PATTERNS("html", "^[ \t]*(<[Hh][1-6]([ \t].*)?>.*)$", |
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"[^<>= \t]+"), |
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PATTERNS("java", |
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"!^[ \t]*(catch|do|for|if|instanceof|new|return|switch|throw|while)\n" |
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"^[ \t]*(([A-Za-z_][A-Za-z_0-9]*[ \t]+)+[A-Za-z_][A-Za-z_0-9]*[ \t]*\\([^;]*)$", |
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/* -- */ |
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"[a-zA-Z_][a-zA-Z0-9_]*" |
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"|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" |
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"|[-+*/<>%&^|=!]=" |
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"|--|\\+\\+|<<=?|>>>?=?|&&|\\|\\|"), |
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PATTERNS("markdown", |
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"^ {0,3}#{1,6}[ \t].*", |
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"[^<>= \t]+"), |
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PATTERNS("matlab", |
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/* |
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* Octave pattern is mostly the same as matlab, except that '%%%' and |
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* '##' can also be used to begin code sections, in addition to '%%' |
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* that is understood by both. |
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*/ |
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"^[[:space:]]*((classdef|function)[[:space:]].*)$|^(%%%?|##)[[:space:]].*$", |
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"[a-zA-Z_][a-zA-Z0-9_]*|[-+0-9.e]+|[=~<>]=|\\.[*/\\^']|\\|\\||&&"), |
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PATTERNS("objc", |
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/* Negate C statements that can look like functions */ |
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"!^[ \t]*(do|for|if|else|return|switch|while)\n" |
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/* Objective-C methods */ |
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"^[ \t]*([-+][ \t]*\\([ \t]*[A-Za-z_][A-Za-z_0-9* \t]*\\)[ \t]*[A-Za-z_].*)$\n" |
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/* C functions */ |
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"^[ \t]*(([A-Za-z_][A-Za-z_0-9]*[ \t]+)+[A-Za-z_][A-Za-z_0-9]*[ \t]*\\([^;]*)$\n" |
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/* Objective-C class/protocol definitions */ |
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"^(@(implementation|interface|protocol)[ \t].*)$", |
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/* -- */ |
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"[a-zA-Z_][a-zA-Z0-9_]*" |
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"|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" |
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"|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->"), |
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PATTERNS("pascal", |
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"^(((class[ \t]+)?(procedure|function)|constructor|destructor|interface|" |
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"implementation|initialization|finalization)[ \t]*.*)$" |
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"\n" |
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"^(.*=[ \t]*(class|record).*)$", |
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/* -- */ |
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"[a-zA-Z_][a-zA-Z0-9_]*" |
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"|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+" |
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"|<>|<=|>=|:=|\\.\\."), |
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PATTERNS("perl", |
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"^package .*\n" |
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"^sub [[:alnum:]_':]+[ \t]*" |
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"(\\([^)]*\\)[ \t]*)?" /* prototype */ |
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/* |
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* Attributes. A regex can't count nested parentheses, |
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* so just slurp up whatever we see, taking care not |
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* to accept lines like "sub foo; # defined elsewhere". |
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* |
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* An attribute could contain a semicolon, but at that |
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* point it seems reasonable enough to give up. |
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*/ |
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"(:[^;#]*)?" |
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"(\\{[ \t]*)?" /* brace can come here or on the next line */ |
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"(#.*)?$\n" /* comment */ |
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"^(BEGIN|END|INIT|CHECK|UNITCHECK|AUTOLOAD|DESTROY)[ \t]*" |
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"(\\{[ \t]*)?" /* brace can come here or on the next line */ |
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"(#.*)?$\n" |
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"^=head[0-9] .*", /* POD */ |
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/* -- */ |
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"[[:alpha:]_'][[:alnum:]_']*" |
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"|0[xb]?[0-9a-fA-F_]*" |
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/* taking care not to interpret 3..5 as (3.)(.5) */ |
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"|[0-9a-fA-F_]+(\\.[0-9a-fA-F_]+)?([eE][-+]?[0-9_]+)?" |
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"|=>|-[rwxoRWXOezsfdlpSugkbctTBMAC>]|~~|::" |
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"|&&=|\\|\\|=|//=|\\*\\*=" |
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"|&&|\\|\\||//|\\+\\+|--|\\*\\*|\\.\\.\\.?" |
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"|[-+*/%.^&<>=!|]=" |
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"|=~|!~" |
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"|<<|<>|<=>|>>"), |
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PATTERNS("php", |
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"^[\t ]*(((public|protected|private|static)[\t ]+)*function.*)$\n" |
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"^[\t ]*((((final|abstract)[\t ]+)?class|interface|trait).*)$", |
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/* -- */ |
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"[a-zA-Z_][a-zA-Z0-9_]*" |
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"|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+" |
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"|[-+*/<>%&^|=!.]=|--|\\+\\+|<<=?|>>=?|===|&&|\\|\\||::|->"), |
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PATTERNS("python", "^[ \t]*((class|(async[ \t]+)?def)[ \t].*)$", |
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/* -- */ |
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"[a-zA-Z_][a-zA-Z0-9_]*" |
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"|[-+0-9.e]+[jJlL]?|0[xX]?[0-9a-fA-F]+[lL]?" |
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"|[-+*/<>%&^|=!]=|//=?|<<=?|>>=?|\\*\\*=?"), |
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/* -- */ |
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PATTERNS("ruby", "^[ \t]*((class|module|def)[ \t].*)$", |
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/* -- */ |
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"(@|@@|\\$)?[a-zA-Z_][a-zA-Z0-9_]*" |
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"|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+|\\?(\\\\C-)?(\\\\M-)?." |
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"|//=?|[-+*/<>%&^|=!]=|<<=?|>>=?|===|\\.{1,3}|::|[!=]~"), |
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PATTERNS("rust", |
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"^[\t ]*((pub(\\([^\\)]+\\))?[\t ]+)?((async|const|unsafe|extern([\t ]+\"[^\"]+\"))[\t ]+)?(struct|enum|union|mod|trait|fn|impl)[< \t]+[^;]*)$", |
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/* -- */ |
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"[a-zA-Z_][a-zA-Z0-9_]*" |
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"|[0-9][0-9_a-fA-Fiosuxz]*(\\.([0-9]*[eE][+-]?)?[0-9_fF]*)?" |
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"|[-+*\\/<>%&^|=!:]=|<<=?|>>=?|&&|\\|\\||->|=>|\\.{2}=|\\.{3}|::"), |
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PATTERNS("bibtex", "(@[a-zA-Z]{1,}[ \t]*\\{{0,1}[ \t]*[^ \t\"@',\\#}{~%]*).*$", |
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"[={}\"]|[^={}\" \t]+"), |
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PATTERNS("tex", "^(\\\\((sub)*section|chapter|part)\\*{0,1}\\{.*)$", |
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"\\\\[a-zA-Z@]+|\\\\.|[a-zA-Z0-9\x80-\xff]+"), |
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PATTERNS("cpp", |
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/* Jump targets or access declarations */ |
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"!^[ \t]*[A-Za-z_][A-Za-z_0-9]*:[[:space:]]*($|/[/*])\n" |
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/* functions/methods, variables, and compounds at top level */ |
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"^((::[[:space:]]*)?[A-Za-z_].*)$", |
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/* -- */ |
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"[a-zA-Z_][a-zA-Z0-9_]*" |
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"|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lLuU]*" |
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"|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->\\*?|\\.\\*"), |
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PATTERNS("csharp", |
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/* Keywords */ |
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"!^[ \t]*(do|while|for|if|else|instanceof|new|return|switch|case|throw|catch|using)\n" |
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/* Methods and constructors */ |
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"^[ \t]*(((static|public|internal|private|protected|new|virtual|sealed|override|unsafe|async)[ \t]+)*[][<>@.~_[:alnum:]]+[ \t]+[<>@._[:alnum:]]+[ \t]*\\(.*\\))[ \t]*$\n" |
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/* Properties */ |
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"^[ \t]*(((static|public|internal|private|protected|new|virtual|sealed|override|unsafe)[ \t]+)*[][<>@.~_[:alnum:]]+[ \t]+[@._[:alnum:]]+)[ \t]*$\n" |
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/* Type definitions */ |
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"^[ \t]*(((static|public|internal|private|protected|new|unsafe|sealed|abstract|partial)[ \t]+)*(class|enum|interface|struct)[ \t]+.*)$\n" |
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/* Namespace */ |
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"^[ \t]*(namespace[ \t]+.*)$", |
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/* -- */ |
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"[a-zA-Z_][a-zA-Z0-9_]*" |
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"|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?" |
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"|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->"), |
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IPATTERN("css", |
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"![:;][[:space:]]*$\n" |
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"^[_a-z0-9].*$", |
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/* -- */ |
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/* |
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* This regex comes from W3C CSS specs. Should theoretically also |
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* allow ISO 10646 characters U+00A0 and higher, |
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* but they are not handled in this regex. |
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*/ |
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"-?[_a-zA-Z][-_a-zA-Z0-9]*" /* identifiers */ |
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"|-?[0-9]+|\\#[0-9a-fA-F]+" /* numbers */ |
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), |
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{ "default", NULL, -1, { NULL, 0 } }, |
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}; |
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#undef PATTERNS |
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#undef IPATTERN |
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static struct userdiff_driver driver_true = { |
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"diff=true", |
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NULL, |
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0, |
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{ NULL, 0 } |
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}; |
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static struct userdiff_driver driver_false = { |
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"!diff", |
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NULL, |
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1, |
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{ NULL, 0 } |
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}; |
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static struct userdiff_driver *userdiff_find_by_namelen(const char *k, size_t len) |
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{ |
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int i; |
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for (i = 0; i < ndrivers; i++) { |
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struct userdiff_driver *drv = drivers + i; |
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if (!strncmp(drv->name, k, len) && !drv->name[len]) |
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return drv; |
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} |
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for (i = 0; i < ARRAY_SIZE(builtin_drivers); i++) { |
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struct userdiff_driver *drv = builtin_drivers + i; |
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if (!strncmp(drv->name, k, len) && !drv->name[len]) |
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return drv; |
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} |
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return NULL; |
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} |
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static int parse_funcname(struct userdiff_funcname *f, const char *k, |
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const char *v, int cflags) |
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{ |
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if (git_config_string(&f->pattern, k, v) < 0) |
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return -1; |
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f->cflags = cflags; |
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return 0; |
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} |
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static int parse_tristate(int *b, const char *k, const char *v) |
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{ |
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if (v && !strcasecmp(v, "auto")) |
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*b = -1; |
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else |
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*b = git_config_bool(k, v); |
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return 0; |
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} |
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static int parse_bool(int *b, const char *k, const char *v) |
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{ |
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*b = git_config_bool(k, v); |
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return 0; |
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} |
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int userdiff_config(const char *k, const char *v) |
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{ |
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struct userdiff_driver *drv; |
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const char *name, *type; |
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size_t namelen; |
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if (parse_config_key(k, "diff", &name, &namelen, &type) || !name) |
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return 0; |
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drv = userdiff_find_by_namelen(name, namelen); |
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if (!drv) { |
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ALLOC_GROW(drivers, ndrivers+1, drivers_alloc); |
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drv = &drivers[ndrivers++]; |
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memset(drv, 0, sizeof(*drv)); |
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drv->name = xmemdupz(name, namelen); |
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drv->binary = -1; |
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} |
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if (!strcmp(type, "funcname")) |
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return parse_funcname(&drv->funcname, k, v, 0); |
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if (!strcmp(type, "xfuncname")) |
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return parse_funcname(&drv->funcname, k, v, REG_EXTENDED); |
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if (!strcmp(type, "binary")) |
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return parse_tristate(&drv->binary, k, v); |
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if (!strcmp(type, "command")) |
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return git_config_string(&drv->external, k, v); |
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if (!strcmp(type, "textconv")) |
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return git_config_string(&drv->textconv, k, v); |
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if (!strcmp(type, "cachetextconv")) |
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return parse_bool(&drv->textconv_want_cache, k, v); |
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if (!strcmp(type, "wordregex")) |
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return git_config_string(&drv->word_regex, k, v); |
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return 0; |
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} |
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struct userdiff_driver *userdiff_find_by_name(const char *name) |
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{ |
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int len = strlen(name); |
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return userdiff_find_by_namelen(name, len); |
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} |
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struct userdiff_driver *userdiff_find_by_path(struct index_state *istate, |
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const char *path) |
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{ |
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static struct attr_check *check; |
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|
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if (!check) |
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check = attr_check_initl("diff", NULL); |
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if (!path) |
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return NULL; |
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git_check_attr(istate, path, check); |
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if (ATTR_TRUE(check->items[0].value)) |
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return &driver_true; |
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if (ATTR_FALSE(check->items[0].value)) |
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return &driver_false; |
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if (ATTR_UNSET(check->items[0].value)) |
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return NULL; |
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return userdiff_find_by_name(check->items[0].value); |
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} |
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struct userdiff_driver *userdiff_get_textconv(struct repository *r, |
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struct userdiff_driver *driver) |
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{ |
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if (!driver->textconv) |
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return NULL; |
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if (driver->textconv_want_cache && !driver->textconv_cache) { |
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struct notes_cache *c = xmalloc(sizeof(*c)); |
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struct strbuf name = STRBUF_INIT; |
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strbuf_addf(&name, "textconv/%s", driver->name); |
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notes_cache_init(r, c, name.buf, driver->textconv); |
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driver->textconv_cache = c; |
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strbuf_release(&name); |
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} |
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return driver; |
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}
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