diff options
Diffstat (limited to 'grep.c')
-rw-r--r-- | grep.c | 35 |
1 files changed, 28 insertions, 7 deletions
@@ -1502,31 +1502,52 @@ static void show_funcname_line(struct grep_opt *opt, struct grep_source *gs, } } +static int is_empty_line(const char *bol, const char *eol); + static void show_pre_context(struct grep_opt *opt, struct grep_source *gs, char *bol, char *end, unsigned lno) { - unsigned cur = lno, from = 1, funcname_lno = 0; - int funcname_needed = !!opt->funcname; - - if (opt->funcbody && !match_funcname(opt, gs, bol, end)) - funcname_needed = 2; + unsigned cur = lno, from = 1, funcname_lno = 0, orig_from; + int funcname_needed = !!opt->funcname, comment_needed = 0; if (opt->pre_context < lno) from = lno - opt->pre_context; if (from <= opt->last_shown) from = opt->last_shown + 1; + orig_from = from; + if (opt->funcbody) { + if (match_funcname(opt, gs, bol, end)) + comment_needed = 1; + else + funcname_needed = 1; + from = opt->last_shown + 1; + } /* Rewind. */ - while (bol > gs->buf && - cur > (funcname_needed == 2 ? opt->last_shown + 1 : from)) { + while (bol > gs->buf && cur > from) { + char *next_bol = bol; char *eol = --bol; while (bol > gs->buf && bol[-1] != '\n') bol--; cur--; + if (comment_needed && (is_empty_line(bol, eol) || + match_funcname(opt, gs, bol, eol))) { + comment_needed = 0; + from = orig_from; + if (cur < from) { + cur++; + bol = next_bol; + break; + } + } if (funcname_needed && match_funcname(opt, gs, bol, eol)) { funcname_lno = cur; funcname_needed = 0; + if (opt->funcbody) + comment_needed = 1; + else + from = orig_from; } } |