test-lib: add the test_pause convenience function

diff --git a/pretty.c b/pretty.c
index 1bb7e075eaf7e7a59502931fd4f57a9c391a7e4e..230fe1cc82e3a3bf7c0fef604350868d917acef4 100644 (file)
--- a/pretty.c
+++ b/pretty.c
@@ -208,6 +208,58 @@ int has_non_ascii(const char *s)
        return 0;
 }
 
+static int is_rfc822_special(char ch)
+{
+       switch (ch) {
+       case '(':
+       case ')':
+       case '<':
+       case '>':
+       case '[':
+       case ']':
+       case ':':
+       case ';':
+       case '@':
+       case ',':
+       case '.':
+       case '"':
+       case '\\':
+               return 1;
+       default:
+               return 0;
+       }
+}
+
+static int has_rfc822_specials(const char *s, int len)
+{
+       int i;
+       for (i = 0; i < len; i++)
+               if (is_rfc822_special(s[i]))
+                       return 1;
+       return 0;
+}
+
+static void add_rfc822_quoted(struct strbuf *out, const char *s, int len)
+{
+       int i;
+
+       /* just a guess, we may have to also backslash-quote */
+       strbuf_grow(out, len + 2);
+
+       strbuf_addch(out, '"');
+       for (i = 0; i < len; i++) {
+               switch (s[i]) {
+               case '"':
+               case '\\':
+                       strbuf_addch(out, '\\');
+                       /* fall through */
+               default:
+                       strbuf_addch(out, s[i]);
+               }
+       }
+       strbuf_addch(out, '"');
+}
+
 static int is_rfc2047_special(char ch)
 {
        return (non_ascii(ch) || (ch == '=') || (ch == '?') || (ch == '_'));
@@ -294,7 +346,14 @@ void pp_user_info(const struct pretty_print_context *pp,
                        name_tail--;
                display_name_length = name_tail - line;
                strbuf_addstr(sb, "From: ");
-               add_rfc2047(sb, line, display_name_length, encoding);
+               if (!has_rfc822_specials(line, display_name_length)) {
+                       add_rfc2047(sb, line, display_name_length, encoding);
+               } else {
+                       struct strbuf quoted = STRBUF_INIT;
+                       add_rfc822_quoted(&quoted, line, display_name_length);
+                       add_rfc2047(sb, quoted.buf, quoted.len, encoding);
+                       strbuf_release(&quoted);
+               }
                for (final_line = 0; final_line < sb->len; final_line++)
                        if (sb->buf[sb->len - final_line - 1] == '\n')
                                break;
@@ -885,11 +944,7 @@ static size_t format_commit_one(struct strbuf *sb, const char *placeholder,
                                              c->abbrev_parent_hashes.off;
                return 1;
        case 'm':               /* left/right/bottom */
-               strbuf_addch(sb, (commit->object.flags & BOUNDARY)
-                                ? '-'
-                                : (commit->object.flags & SYMMETRIC_LEFT)
-                                ? '<'
-                                : '>');
+               strbuf_addstr(sb, get_revision_mark(NULL, commit));
                return 1;
        case 'd':
                format_decoration(sb, commit);
@@ -1029,7 +1084,7 @@ void userformat_find_requirements(const char *fmt, struct userformat_want *w)
                        return;
                fmt = user_format;
        }
-       strbuf_expand(&dummy, user_format, userformat_want_item, w);
+       strbuf_expand(&dummy, fmt, userformat_want_item, w);
        strbuf_release(&dummy);
 }
 
@@ -1039,7 +1094,6 @@ void format_commit_message(const struct commit *commit,
 {
        struct format_commit_context context;
        static const char utf8[] = "UTF-8";
-       const char *enc;
        const char *output_enc = pretty_ctx->output_encoding;
 
        memset(&context, 0, sizeof(context));
@@ -1048,10 +1102,13 @@ void format_commit_message(const struct commit *commit,
        context.wrap_start = sb->len;
        context.message = commit->buffer;
        if (output_enc) {
-               enc = get_header(commit, "encoding");
-               enc = enc ? enc : utf8;
-               if (strcmp(enc, output_enc))
+               char *enc = get_header(commit, "encoding");
+               if (strcmp(enc ? enc : utf8, output_enc)) {
                        context.message = logmsg_reencode(commit, output_enc);
+                       if (!context.message)
+                               context.message = commit->buffer;
+               }
+               free(enc);
        }
 
        strbuf_expand(sb, format, format_commit_item, &context);
@@ -1131,7 +1188,8 @@ void pp_title_line(const struct pretty_print_context *pp,
        struct strbuf title;
 
        strbuf_init(&title, 80);
-       *msg_p = format_subject(&title, *msg_p, " ");
+       *msg_p = format_subject(&title, *msg_p,
+                               pp->preserve_subject ? "\n" : " ");
 
        strbuf_grow(sb, title.len + 1024);
        if (pp->subject) {