diff options
| -rw-r--r-- | bin/hi.c | 41 |
1 files changed, 21 insertions, 20 deletions
diff --git a/bin/hi.c b/bin/hi.c index 82d0889d..cd24ea07 100644 --- a/bin/hi.c +++ b/bin/hi.c @@ -27,6 +27,9 @@ #define ARRAY_LEN(a) (sizeof(a) / sizeof(a[0])) +typedef unsigned Set; +#define SET(x) ((Set)1 << (x)) + enum Class { Normal, Keyword, @@ -42,15 +45,14 @@ enum Class { struct Syntax { enum Class class; - enum Class parent; + Set parent; + size_t subexp; const char *pattern; const char *pattend; - size_t subexp; }; #define WB "(^|[^_[:alnum:]]|\n)" #define WS "[[:blank:]]*" - #define PATTERN_SQ "'([^']|\\\\')*'" #define PATTERN_DQ "\"([^\"]|\\\\\")*\"" #define PATTERN_TODO "FIXME|TODO|XXX" @@ -71,33 +73,30 @@ static const struct Syntax CSyntax[] = { { Keyword, .subexp = 2, .pattern = WB "(break|continue|goto|return)" WB }, { Macro, - .pattern = "^#(.|\\\\\n)*" }, - { String, .subexp = 1, - .pattern = "^#include (<[^>]*>)" }, + .pattern = "^" WS "#(.|\\\\\n)*" }, + { String, .parent = SET(Macro), .subexp = 1, + .pattern = "include" WS "(<[^>]*>)" }, { String, .pattern = "[LUu]?" PATTERN_SQ }, { String, .pattern = "([LU]|u8?)?" PATTERN_DQ }, - { Escape, .parent = String, + { Escape, .parent = SET(String), .pattern = "\\\\([\"'?\\abfnrtv]|[0-7]{1,3}|x[0-9A-Fa-f]+)" }, - { Escape, .parent = String, + { Escape, .parent = SET(String), .pattern = "\\\\(U[0-9A-Fa-f]{8}|u[0-9A-Fa-f]{4})" }, - { Format, .parent = String, .pattern = + { Format, .parent = SET(String), .pattern = "%%|%[ #+-0]*" // flags "(\\*|[0-9]+)?" // field width "(\\.(\\*|[0-9]+))?" // precision "([Lhjltz]|hh|ll)?" // length modifier "[AEFGXacdefginopsux]" // format specifier }, - { Comment, + { Comment, .parent = ~SET(String), .pattern = "//.*" }, - { Comment, + { Comment, .parent = ~SET(String), .pattern = "/\\*", .pattend = "\\*/" }, - { Comment, - .pattern = "^#if 0", - .pattend = "^#endif" }, - { Todo, .parent = Comment, + { Todo, .parent = SET(Comment), .pattern = PATTERN_TODO }, }; @@ -125,7 +124,7 @@ static const struct Syntax MakeSyntax[] = { .pattern = "\\$\\$" }, { Comment, .pattern = "#.*" }, - { Todo, .parent = Comment, + { Todo, .parent = SET(Comment), .pattern = PATTERN_TODO }, }; @@ -158,7 +157,7 @@ static const struct Syntax MdocSyntax[] = { .pattern = "\\\\(" "." "|" "\\(.{2}" "|" "\\[[^]]*\\]" ")" }, { Comment, .pattern = "^\\.\\\\\".*" }, - { Todo, .parent = Comment, + { Todo, .parent = SET(Comment), .pattern = PATTERN_TODO }, }; @@ -168,8 +167,8 @@ static const struct Language { const struct Syntax *syntax; size_t len; } Languages[] = { - { "c", "\\.[ch]$", CSyntax, ARRAY_LEN(CSyntax) }, - { "make", "^Makefile$|\\.mk$", MakeSyntax, ARRAY_LEN(MakeSyntax) }, + { "c", "\\.[ch]$", CSyntax, ARRAY_LEN(CSyntax) }, + { "make", "\\.mk$|^Makefile$", MakeSyntax, ARRAY_LEN(MakeSyntax) }, { "mdoc", "\\.[1-9]$", MdocSyntax, ARRAY_LEN(MdocSyntax) }, }; @@ -212,8 +211,10 @@ static void highlight(struct Language lang, enum Class *hi, const char *str) { } regmatch_t sub = subs[syn.subexp]; + if (syn.parent) { + if (~syn.parent & SET(hi[offset + sub.rm_so])) continue; + } for (regoff_t j = sub.rm_so; j < sub.rm_eo; ++j) { - if (syn.parent && hi[offset + j] != syn.parent) continue; hi[offset + j] = lang.syntax[i].class; } } |