grep: update boundary variable for pre-context

diff --git a/grep.c b/grep.c
index ce6a48e634105154ca4bb267b4eb744c74d4d803..2c55d10c5534a7cd1e554c4c7e5a2da834ff5512 100644 (file)
--- a/grep.c
+++ b/grep.c
@@ -387,7 +387,7 @@ static void compile_pcre1_regexp(struct grep_pat *p, const struct grep_opt *opt)
        if (!p->pcre1_regexp)
                compile_regexp_failed(p, error);
 
-       p->pcre1_extra_info = pcre_study(p->pcre1_regexp, PCRE_STUDY_JIT_COMPILE, &error);
+       p->pcre1_extra_info = pcre_study(p->pcre1_regexp, GIT_PCRE_STUDY_JIT_COMPILE, &error);
        if (!p->pcre1_extra_info && error)
                die("%s", error);
 
@@ -1479,20 +1479,21 @@ static void show_funcname_line(struct grep_opt *opt, struct grep_source *gs,
 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;
+       unsigned cur = lno, from = 1, funcname_lno = 0, orig_from;
        int funcname_needed = !!opt->funcname;
 
-       if (opt->funcbody && !match_funcname(opt, gs, bol, end))
-               funcname_needed = 2;
-
        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 && !match_funcname(opt, gs, bol, end)) {
+               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 *eol = --bol;
 
                while (bol > gs->buf && bol[-1] != '\n')
@@ -1501,6 +1502,7 @@ static void show_pre_context(struct grep_opt *opt, struct grep_source *gs,
                if (funcname_needed && match_funcname(opt, gs, bol, eol)) {
                        funcname_lno = cur;
                        funcname_needed = 0;
+                       from = orig_from;
                }
        }