diff options
| -rw-r--r-- | builtin/branch.c | 13 | ||||
| -rw-r--r-- | builtin/cat-file.c | 35 | ||||
| -rw-r--r-- | builtin/ls-files.c | 109 | ||||
| -rw-r--r-- | builtin/ls-tree.c | 107 | ||||
| -rw-r--r-- | convert.c | 22 | ||||
| -rw-r--r-- | daemon.c | 61 | ||||
| -rw-r--r-- | merge-ll.c | 33 | ||||
| -rw-r--r-- | pretty.c | 99 | ||||
| -rw-r--r-- | strbuf.c | 58 | ||||
| -rw-r--r-- | strbuf.h | 57 |
10 files changed, 228 insertions, 366 deletions
diff --git a/builtin/branch.c b/builtin/branch.c index b57e4c6e61..2fa7b2bd64 100644 --- a/builtin/branch.c +++ b/builtin/branch.c @@ -366,17 +366,8 @@ static const char *quote_literal_for_format(const char *s) static struct strbuf buf = STRBUF_INIT; strbuf_reset(&buf); - while (*s) { - const char *ep = strchrnul(s, '%'); - if (s < ep) - strbuf_add(&buf, s, ep - s); - if (*ep == '%') { - strbuf_addstr(&buf, "%%"); - s = ep + 1; - } else { - s = ep; - } - } + while (strbuf_expand_step(&buf, &s)) + strbuf_addstr(&buf, "%%"); return buf.buf; } diff --git a/builtin/cat-file.c b/builtin/cat-file.c index ab8ac105e3..fab04310fb 100644 --- a/builtin/cat-file.c +++ b/builtin/cat-file.c @@ -309,10 +309,8 @@ static int is_atom(const char *atom, const char *s, int slen) } static void expand_atom(struct strbuf *sb, const char *atom, int len, - void *vdata) + struct expand_data *data) { - struct expand_data *data = vdata; - if (is_atom("objectname", atom, len)) { if (!data->mark_query) strbuf_addstr(sb, oid_to_hex(&data->oid)); @@ -346,19 +344,21 @@ static void expand_atom(struct strbuf *sb, const char *atom, int len, die("unknown format element: %.*s", len, atom); } -static size_t expand_format(struct strbuf *sb, const char *start, void *data) +static void expand_format(struct strbuf *sb, const char *start, + struct expand_data *data) { - const char *end; - - if (*start != '(') - return 0; - end = strchr(start + 1, ')'); - if (!end) - die("format element '%s' does not end in ')'", start); - - expand_atom(sb, start + 1, end - start - 1, data); - - return end - start + 1; + while (strbuf_expand_step(sb, &start)) { + const char *end; + + if (skip_prefix(start, "%", &start) || *start != '(') + strbuf_addch(sb, '%'); + else if (!(end = strchr(start + 1, ')'))) + die("format element '%s' does not end in ')'", start); + else { + expand_atom(sb, start + 1, end - start - 1, data); + start = end + 1; + } + } } static void batch_write(struct batch_options *opt, const void *data, int len) @@ -495,7 +495,7 @@ static void batch_object_write(const char *obj_name, if (!opt->format) { print_default_format(scratch, data, opt); } else { - strbuf_expand(scratch, opt->format, expand_format, data); + expand_format(scratch, opt->format, data); strbuf_addch(scratch, opt->output_delim); } @@ -773,9 +773,8 @@ static int batch_objects(struct batch_options *opt) */ memset(&data, 0, sizeof(data)); data.mark_query = 1; - strbuf_expand(&output, + expand_format(&output, opt->format ? opt->format : DEFAULT_FORMAT, - expand_format, &data); data.mark_query = 0; strbuf_release(&output); diff --git a/builtin/ls-files.c b/builtin/ls-files.c index c1ff79c559..a0229c3277 100644 --- a/builtin/ls-files.c +++ b/builtin/ls-files.c @@ -264,74 +264,57 @@ static void expand_objectsize(struct strbuf *line, const struct object_id *oid, strbuf_addstr(line, "-"); } } -struct show_index_data { - const char *pathname; - struct index_state *istate; - const struct cache_entry *ce; -}; - -static size_t expand_show_index(struct strbuf *sb, const char *start, - void *context) -{ - struct show_index_data *data = context; - const char *end; - const char *p; - size_t len = strbuf_expand_literal_cb(sb, start, NULL); - struct stat st; - - if (len) - return len; - if (*start != '(') - die(_("bad ls-files format: element '%s' " - "does not start with '('"), start); - - end = strchr(start + 1, ')'); - if (!end) - die(_("bad ls-files format: element '%s' " - "does not end in ')'"), start); - - len = end - start + 1; - if (skip_prefix(start, "(objectmode)", &p)) - strbuf_addf(sb, "%06o", data->ce->ce_mode); - else if (skip_prefix(start, "(objectname)", &p)) - strbuf_add_unique_abbrev(sb, &data->ce->oid, abbrev); - else if (skip_prefix(start, "(objecttype)", &p)) - strbuf_addstr(sb, type_name(object_type(data->ce->ce_mode))); - else if (skip_prefix(start, "(objectsize:padded)", &p)) - expand_objectsize(sb, &data->ce->oid, object_type(data->ce->ce_mode), 1); - else if (skip_prefix(start, "(objectsize)", &p)) - expand_objectsize(sb, &data->ce->oid, object_type(data->ce->ce_mode), 0); - else if (skip_prefix(start, "(stage)", &p)) - strbuf_addf(sb, "%d", ce_stage(data->ce)); - else if (skip_prefix(start, "(eolinfo:index)", &p)) - strbuf_addstr(sb, S_ISREG(data->ce->ce_mode) ? - get_cached_convert_stats_ascii(data->istate, - data->ce->name) : ""); - else if (skip_prefix(start, "(eolinfo:worktree)", &p)) - strbuf_addstr(sb, !lstat(data->pathname, &st) && - S_ISREG(st.st_mode) ? - get_wt_convert_stats_ascii(data->pathname) : ""); - else if (skip_prefix(start, "(eolattr)", &p)) - strbuf_addstr(sb, get_convert_attr_ascii(data->istate, - data->pathname)); - else if (skip_prefix(start, "(path)", &p)) - write_name_to_buf(sb, data->pathname); - else - die(_("bad ls-files format: %%%.*s"), (int)len, start); - - return len; -} static void show_ce_fmt(struct repository *repo, const struct cache_entry *ce, const char *format, const char *fullname) { - struct show_index_data data = { - .pathname = fullname, - .istate = repo->index, - .ce = ce, - }; struct strbuf sb = STRBUF_INIT; - strbuf_expand(&sb, format, expand_show_index, &data); + while (strbuf_expand_step(&sb, &format)) { + const char *end; + size_t len; + struct stat st; + + if (skip_prefix(format, "%", &format)) + strbuf_addch(&sb, '%'); + else if ((len = strbuf_expand_literal(&sb, format))) + format += len; + else if (*format != '(') + die(_("bad ls-files format: element '%s' " + "does not start with '('"), format); + else if (!(end = strchr(format + 1, ')'))) + die(_("bad ls-files format: element '%s' " + "does not end in ')'"), format); + else if (skip_prefix(format, "(objectmode)", &format)) + strbuf_addf(&sb, "%06o", ce->ce_mode); + else if (skip_prefix(format, "(objectname)", &format)) + strbuf_add_unique_abbrev(&sb, &ce->oid, abbrev); + else if (skip_prefix(format, "(objecttype)", &format)) + strbuf_addstr(&sb, type_name(object_type(ce->ce_mode))); + else if (skip_prefix(format, "(objectsize:padded)", &format)) + expand_objectsize(&sb, &ce->oid, + object_type(ce->ce_mode), 1); + else if (skip_prefix(format, "(objectsize)", &format)) + expand_objectsize(&sb, &ce->oid, + object_type(ce->ce_mode), 0); + else if (skip_prefix(format, "(stage)", &format)) + strbuf_addf(&sb, "%d", ce_stage(ce)); + else if (skip_prefix(format, "(eolinfo:index)", &format)) + strbuf_addstr(&sb, S_ISREG(ce->ce_mode) ? + get_cached_convert_stats_ascii(repo->index, + ce->name) : ""); + else if (skip_prefix(format, "(eolinfo:worktree)", &format)) + strbuf_addstr(&sb, !lstat(fullname, &st) && + S_ISREG(st.st_mode) ? + get_wt_convert_stats_ascii(fullname) : ""); + else if (skip_prefix(format, "(eolattr)", &format)) + strbuf_addstr(&sb, get_convert_attr_ascii(repo->index, + fullname)); + else if (skip_prefix(format, "(path)", &format)) + write_name_to_buf(&sb, fullname); + else + die(_("bad ls-files format: %%%.*s"), + (int)(end - format + 1), format); + } strbuf_addch(&sb, line_terminator); fwrite(sb.buf, sb.len, 1, stdout); strbuf_release(&sb); diff --git a/builtin/ls-tree.c b/builtin/ls-tree.c index 4e17f13648..7a062e2b67 100644 --- a/builtin/ls-tree.c +++ b/builtin/ls-tree.c @@ -55,63 +55,6 @@ struct ls_tree_options { const char *format; }; -struct show_tree_data { - struct ls_tree_options *options; - unsigned mode; - enum object_type type; - const struct object_id *oid; - const char *pathname; - struct strbuf *base; -}; - -static size_t expand_show_tree(struct strbuf *sb, const char *start, - void *context) -{ - struct show_tree_data *data = context; - struct ls_tree_options *options = data->options; - const char *end; - const char *p; - unsigned int errlen; - size_t len = strbuf_expand_literal_cb(sb, start, NULL); - - if (len) - return len; - if (*start != '(') - die(_("bad ls-tree format: element '%s' does not start with '('"), start); - - end = strchr(start + 1, ')'); - if (!end) - die(_("bad ls-tree format: element '%s' does not end in ')'"), start); - - len = end - start + 1; - if (skip_prefix(start, "(objectmode)", &p)) { - strbuf_addf(sb, "%06o", data->mode); - } else if (skip_prefix(start, "(objecttype)", &p)) { - strbuf_addstr(sb, type_name(data->type)); - } else if (skip_prefix(start, "(objectsize:padded)", &p)) { - expand_objectsize(sb, data->oid, data->type, 1); - } else if (skip_prefix(start, "(objectsize)", &p)) { - expand_objectsize(sb, data->oid, data->type, 0); - } else if (skip_prefix(start, "(objectname)", &p)) { - strbuf_add_unique_abbrev(sb, data->oid, options->abbrev); - } else if (skip_prefix(start, "(path)", &p)) { - const char *name = data->base->buf; - const char *prefix = options->chomp_prefix ? options->ls_tree_prefix : NULL; - struct strbuf sbuf = STRBUF_INIT; - size_t baselen = data->base->len; - - strbuf_addstr(data->base, data->pathname); - name = relative_path(data->base->buf, prefix, &sbuf); - quote_c_style(name, sb, NULL, 0); - strbuf_setlen(data->base, baselen); - strbuf_release(&sbuf); - } else { - errlen = (unsigned long)len; - die(_("bad ls-tree format: %%%.*s"), errlen, start); - } - return len; -} - static int show_recursive(struct ls_tree_options *options, const char *base, size_t baselen, const char *pathname) { @@ -150,14 +93,7 @@ static int show_tree_fmt(const struct object_id *oid, struct strbuf *base, int recurse = 0; struct strbuf sb = STRBUF_INIT; enum object_type type = object_type(mode); - struct show_tree_data cb_data = { - .options = options, - .mode = mode, - .type = type, - .oid = oid, - .pathname = pathname, - .base = base, - }; + const char *format = options->format; if (type == OBJ_TREE && show_recursive(options, base->buf, base->len, pathname)) recurse = READ_TREE_RECURSIVE; @@ -166,7 +102,46 @@ static int show_tree_fmt(const struct object_id *oid, struct strbuf *base, if (type == OBJ_BLOB && (options->ls_options & LS_TREE_ONLY)) return 0; - strbuf_expand(&sb, options->format, expand_show_tree, &cb_data); + while (strbuf_expand_step(&sb, &format)) { + const char *end; + size_t len; + + if (skip_prefix(format, "%", &format)) + strbuf_addch(&sb, '%'); + else if ((len = strbuf_expand_literal(&sb, format))) + format += len; + else if (*format != '(') + die(_("bad ls-tree format: element '%s' " + "does not start with '('"), format); + else if (!(end = strchr(format + 1, ')'))) + die(_("bad ls-tree format: element '%s' " + "does not end in ')'"), format); + else if (skip_prefix(format, "(objectmode)", &format)) + strbuf_addf(&sb, "%06o", mode); + else if (skip_prefix(format, "(objecttype)", &format)) + strbuf_addstr(&sb, type_name(type)); + else if (skip_prefix(format, "(objectsize:padded)", &format)) + expand_objectsize(&sb, oid, type, 1); + else if (skip_prefix(format, "(objectsize)", &format)) + expand_objectsize(&sb, oid, type, 0); + else if (skip_prefix(format, "(objectname)", &format)) + strbuf_add_unique_abbrev(&sb, oid, options->abbrev); + else if (skip_prefix(format, "(path)", &format)) { + const char *name; + const char *prefix = options->chomp_prefix ? + options->ls_tree_prefix : NULL; + struct strbuf sbuf = STRBUF_INIT; + size_t baselen = base->len; + + strbuf_addstr(base, pathname); + name = relative_path(base->buf, prefix, &sbuf); + quote_c_style(name, &sb, NULL, 0); + strbuf_setlen(base, baselen); + strbuf_release(&sbuf); + } else + die(_("bad ls-tree format: %%%.*s"), + (int)(end - format + 1), format); + } strbuf_addch(&sb, options->null_termination ? '\0' : '\n'); fwrite(sb.buf, sb.len, 1, stdout); strbuf_release(&sb); @@ -634,23 +634,21 @@ static int filter_buffer_or_fd(int in UNUSED, int out, void *data) */ struct child_process child_process = CHILD_PROCESS_INIT; struct filter_params *params = (struct filter_params *)data; + const char *format = params->cmd; int write_err, status; /* apply % substitution to cmd */ struct strbuf cmd = STRBUF_INIT; - struct strbuf path = STRBUF_INIT; - struct strbuf_expand_dict_entry dict[] = { - { "f", NULL, }, - { NULL, NULL, }, - }; - - /* quote the path to preserve spaces, etc. */ - sq_quote_buf(&path, params->path); - dict[0].value = path.buf; - /* expand all %f with the quoted path */ - strbuf_expand(&cmd, params->cmd, strbuf_expand_dict_cb, &dict); - strbuf_release(&path); + /* expand all %f with the quoted path; quote to preserve space, etc. */ + while (strbuf_expand_step(&cmd, &format)) { + if (skip_prefix(format, "%", &format)) + strbuf_addch(&cmd, '%'); + else if (skip_prefix(format, "f", &format)) + sq_quote_buf(&cmd, params->path); + else + strbuf_addch(&cmd, '%'); + } strvec_push(&child_process.args, cmd.buf); child_process.use_shell = 1; @@ -144,42 +144,6 @@ static void NORETURN daemon_die(const char *err, va_list params) exit(1); } -struct expand_path_context { - const char *directory; - struct hostinfo *hostinfo; -}; - -static size_t expand_path(struct strbuf *sb, const char *placeholder, void *ctx) -{ - struct expand_path_context *context = ctx; - struct hostinfo *hi = context->hostinfo; - - switch (placeholder[0]) { - case 'H': - strbuf_addbuf(sb, &hi->hostname); - return 1; - case 'C': - if (placeholder[1] == 'H') { - strbuf_addstr(sb, get_canon_hostname(hi)); - return 2; - } - break; - case 'I': - if (placeholder[1] == 'P') { - strbuf_addstr(sb, get_ip_address(hi)); - return 2; - } - break; - case 'P': - strbuf_addbuf(sb, &hi->tcp_port); - return 1; - case 'D': - strbuf_addstr(sb, context->directory); - return 1; - } - return 0; -} - static const char *path_ok(const char *directory, struct hostinfo *hi) { static char rpath[PATH_MAX]; @@ -223,10 +187,7 @@ static const char *path_ok(const char *directory, struct hostinfo *hi) } else if (interpolated_path && hi->saw_extended_args) { struct strbuf expanded_path = STRBUF_INIT; - struct expand_path_context context; - - context.directory = directory; - context.hostinfo = hi; + const char *format = interpolated_path; if (*dir != '/') { /* Allow only absolute */ @@ -234,8 +195,24 @@ static const char *path_ok(const char *directory, struct hostinfo *hi) return NULL; } - strbuf_expand(&expanded_path, interpolated_path, - expand_path, &context); + while (strbuf_expand_step(&expanded_path, &format)) { + if (skip_prefix(format, "%", &format)) + strbuf_addch(&expanded_path, '%'); + else if (skip_prefix(format, "H", &format)) + strbuf_addbuf(&expanded_path, &hi->hostname); + else if (skip_prefix(format, "CH", &format)) + strbuf_addstr(&expanded_path, + get_canon_hostname(hi)); + else if (skip_prefix(format, "IP", &format)) + strbuf_addstr(&expanded_path, + get_ip_address(hi)); + else if (skip_prefix(format, "P", &format)) + strbuf_addbuf(&expanded_path, &hi->tcp_port); + else if (skip_prefix(format, "D", &format)) + strbuf_addstr(&expanded_path, directory); + else + strbuf_addch(&expanded_path, '%'); + } rlen = strlcpy(interp_path, expanded_path.buf, sizeof(interp_path)); diff --git a/merge-ll.c b/merge-ll.c index 478983309d..933adc3769 100644 --- a/merge-ll.c +++ b/merge-ll.c @@ -192,24 +192,15 @@ static enum ll_merge_result ll_ext_merge(const struct ll_merge_driver *fn, const struct ll_merge_options *opts, int marker_size) { - char temp[4][50]; + char temp[3][50]; struct strbuf cmd = STRBUF_INIT; - struct strbuf_expand_dict_entry dict[6]; - struct strbuf path_sq = STRBUF_INIT; + const char *format = fn->cmdline; struct child_process child = CHILD_PROCESS_INIT; int status, fd, i; struct stat st; enum ll_merge_result ret; assert(opts); - sq_quote_buf(&path_sq, path); - dict[0].placeholder = "O"; dict[0].value = temp[0]; - dict[1].placeholder = "A"; dict[1].value = temp[1]; - dict[2].placeholder = "B"; dict[2].value = temp[2]; - dict[3].placeholder = "L"; dict[3].value = temp[3]; - dict[4].placeholder = "P"; dict[4].value = path_sq.buf; - dict[5].placeholder = NULL; dict[5].value = NULL; - if (!fn->cmdline) die("custom merge driver %s lacks command line.", fn->name); @@ -218,9 +209,23 @@ static enum ll_merge_result ll_ext_merge(const struct ll_merge_driver *fn, create_temp(orig, temp[0], sizeof(temp[0])); create_temp(src1, temp[1], sizeof(temp[1])); create_temp(src2, temp[2], sizeof(temp[2])); - xsnprintf(temp[3], sizeof(temp[3]), "%d", marker_size); - strbuf_expand(&cmd, fn->cmdline, strbuf_expand_dict_cb, &dict); + while (strbuf_expand_step(&cmd, &format)) { + if (skip_prefix(format, "%", &format)) + strbuf_addch(&cmd, '%'); + else if (skip_prefix(format, "O", &format)) + strbuf_addstr(&cmd, temp[0]); + else if (skip_prefix(format, "A", &format)) + strbuf_addstr(&cmd, temp[1]); + else if (skip_prefix(format, "B", &format)) + strbuf_addstr(&cmd, temp[2]); + else if (skip_prefix(format, "L", &format)) + strbuf_addf(&cmd, "%d", marker_size); + else if (skip_prefix(format, "P", &format)) + sq_quote_buf(&cmd, path); + else + strbuf_addch(&cmd, '%'); + } child.use_shell = 1; strvec_push(&child.args, cmd.buf); @@ -242,8 +247,6 @@ static enum ll_merge_result ll_ext_merge(const struct ll_merge_driver *fn, for (i = 0; i < 3; i++) unlink_or_warn(temp[i]); strbuf_release(&cmd); - strbuf_release(&path_sq); - if (!status) ret = LL_MERGE_OK; else if (status <= 128) @@ -1251,6 +1251,27 @@ static int format_trailer_match_cb(const struct strbuf *key, void *ud) return 0; } +static struct strbuf *expand_separator(struct strbuf *sb, + const char *argval, size_t arglen) +{ + char *fmt = xstrndup(argval, arglen); + const char *format = fmt; + + strbuf_reset(sb); + while (strbuf_expand_step(sb, &format)) { + size_t len; + + if (skip_prefix(format, "%", &format)) + strbuf_addch(sb, '%'); + else if ((len = strbuf_expand_literal(sb, format))) + format += len; + else + strbuf_addch(sb, '%'); + } + free(fmt); + return sb; +} + int format_set_trailers_options(struct process_trailer_options *opts, struct string_list *filter_list, struct strbuf *sepbuf, @@ -1279,21 +1300,9 @@ int format_set_trailers_options(struct process_trailer_options *opts, opts->filter_data = filter_list; opts->only_trailers = 1; } else if (match_placeholder_arg_value(*arg, "separator", arg, &argval, &arglen)) { - char *fmt; - - strbuf_reset(sepbuf); - fmt = xstrndup(argval, arglen); - strbuf_expand(sepbuf, fmt, strbuf_expand_literal_cb, NULL); - free(fmt); - opts->separator = sepbuf; + opts->separator = expand_separator(sepbuf, argval, arglen); } else if (match_placeholder_arg_value(*arg, "key_value_separator", arg, &argval, &arglen)) { - char *fmt; - - strbuf_reset(kvsepbuf); - fmt = xstrndup(argval, arglen); - strbuf_expand(kvsepbuf, fmt, strbuf_expand_literal_cb, NULL); - free(fmt); - opts->key_value_separator = kvsepbuf; + opts->key_value_separator = expand_separator(kvsepbuf, argval, arglen); } else if (!match_placeholder_bool_arg(*arg, "only", arg, &opts->only_trailers) && !match_placeholder_bool_arg(*arg, "unfold", arg, &opts->unfold) && !match_placeholder_bool_arg(*arg, "keyonly", arg, &opts->key_only) && @@ -1387,7 +1396,7 @@ static size_t format_commit_one(struct strbuf *sb, /* in UTF-8 */ char **slot; /* these are independent of the commit */ - res = strbuf_expand_literal_cb(sb, placeholder, NULL); + res = strbuf_expand_literal(sb, placeholder); if (res) return res; @@ -1805,7 +1814,7 @@ static size_t format_and_pad_commit(struct strbuf *sb, /* in UTF-8 */ static size_t format_commit_item(struct strbuf *sb, /* in UTF-8 */ const char *placeholder, - void *context) + struct format_commit_context *context) { size_t consumed, orig_len; enum { @@ -1844,7 +1853,7 @@ static size_t format_commit_item(struct strbuf *sb, /* in UTF-8 */ } orig_len = sb->len; - if (((struct format_commit_context *)context)->flush_type != no_flush) + if ((context)->flush_type != no_flush) consumed = format_and_pad_commit(sb, placeholder, context); else consumed = format_commit_one(sb, placeholder, context); @@ -1863,30 +1872,6 @@ static size_t format_commit_item(struct strbuf *sb, /* in UTF-8 */ return consumed + 1; } -static size_t userformat_want_item(struct strbuf *sb UNUSED, - const char *placeholder, - void *context) -{ - struct userformat_want *w = context; - - if (*placeholder == '+' || *placeholder == '-' || *placeholder == ' ') - placeholder++; - - switch (*placeholder) { - case 'N': - w->notes = 1; - break; - case 'S': - w->source = 1; - break; - case 'd': - case 'D': - w->decorate = 1; - break; - } - return 0; -} - void userformat_find_requirements(const char *fmt, struct userformat_want *w) { struct strbuf dummy = STRBUF_INIT; @@ -1896,7 +1881,26 @@ void userformat_find_requirements(const char *fmt, struct userformat_want *w) return; fmt = user_format; } - strbuf_expand(&dummy, fmt, userformat_want_item, w); + while (strbuf_expand_step(&dummy, &fmt)) { + if (skip_prefix(fmt, "%", &fmt)) + continue; + + if (*fmt == '+' || *fmt == '-' || *fmt == ' ') + fmt++; + + switch (*fmt) { + case 'N': + w->notes = 1; + break; + case 'S': + w->source = 1; + break; + case 'd': + case 'D': + w->decorate = 1; + break; + } + } strbuf_release(&dummy); } @@ -1914,7 +1918,16 @@ void repo_format_commit_message(struct repository *r, const char *output_enc = pretty_ctx->output_encoding; const char *utf8 = "UTF-8"; - strbuf_expand(sb, format, format_commit_item, &context); + while (strbuf_expand_step(sb, &format)) { + size_t len; + + if (skip_prefix(format, "%", &format)) + strbuf_addch(sb, '%'); + else if ((len = format_commit_item(sb, format, &context))) + format += len; + else + strbuf_addch(sb, '%'); + } rewrap_message_tail(sb, &context, 0, 0, 0); /* @@ -416,36 +416,19 @@ void strbuf_vaddf(struct strbuf *sb, const char *fmt, va_list ap) strbuf_setlen(sb, sb->len + len); } -void strbuf_expand(struct strbuf *sb, const char *format, expand_fn_t fn, - void *context) +int strbuf_expand_step(struct strbuf *sb, const char **formatp) { - for (;;) { - const char *percent; - size_t consumed; - - percent = strchrnul(format, '%'); - strbuf_add(sb, format, percent - format); - if (!*percent) - break; - format = percent + 1; - - if (*format == '%') { - strbuf_addch(sb, '%'); - format++; - continue; - } + const char *format = *formatp; + const char *percent = strchrnul(format, '%'); - consumed = fn(sb, format, context); - if (consumed) - format += consumed; - else - strbuf_addch(sb, '%'); - } + strbuf_add(sb, format, percent - format); + if (!*percent) + return 0; + *formatp = percent + 1; + return 1; } -size_t strbuf_expand_literal_cb(struct strbuf *sb, - const char *placeholder, - void *context UNUSED) +size_t strbuf_expand_literal(struct strbuf *sb, const char *placeholder) { int ch; @@ -464,22 +447,6 @@ size_t strbuf_expand_literal_cb(struct strbuf *sb, return 0; } -size_t strbuf_expand_dict_cb(struct strbuf *sb, const char *placeholder, - void *context) -{ - struct strbuf_expand_dict_entry *e = context; - size_t len; - - for (; e->placeholder && (len = strlen(e->placeholder)); e++) { - if (!strncmp(placeholder, e->placeholder, len)) { - if (e->value) - strbuf_addstr(sb, e->value); - return len; - } - } - return 0; -} - void strbuf_addbuf_percentquote(struct strbuf *dst, const struct strbuf *src) { size_t i, len = src->len; @@ -1028,12 +995,7 @@ void strbuf_addftime(struct strbuf *sb, const char *fmt, const struct tm *tm, * we want for %z, but the computation for %s has to convert to number * of seconds. */ - for (;;) { - const char *percent = strchrnul(fmt, '%'); - strbuf_add(&munged_fmt, fmt, percent - fmt); - if (!*percent) - break; - fmt = percent + 1; + while (strbuf_expand_step(&munged_fmt, &fmt)) { switch (*fmt) { case '%': strbuf_addstr(&munged_fmt, "%%"); @@ -314,58 +314,19 @@ const char *strbuf_join_argv(struct strbuf *buf, int argc, const char **argv, char delim); /** - * This function can be used to expand a format string containing - * placeholders. To that end, it parses the string and calls the specified - * function for every percent sign found. - * - * The callback function is given a pointer to the character after the `%` - * and a pointer to the struct strbuf. It is expected to add the expanded - * version of the placeholder to the strbuf, e.g. to add a newline - * character if the letter `n` appears after a `%`. The function returns - * the length of the placeholder recognized and `strbuf_expand()` skips - * over it. - * - * The format `%%` is automatically expanded to a single `%` as a quoting - * mechanism; callers do not need to handle the `%` placeholder themselves, - * and the callback function will not be invoked for this placeholder. - * - * All other characters (non-percent and not skipped ones) are copied - * verbatim to the strbuf. If the callback returned zero, meaning that the - * placeholder is unknown, then the percent sign is copied, too. - * - * In order to facilitate caching and to make it possible to give - * parameters to the callback, `strbuf_expand()` passes a context - * pointer with any kind of data. + * Used with `strbuf_expand_step` to expand the literals %n and %x + * followed by two hexadecimal digits. Returns the number of recognized + * characters. */ -typedef size_t (*expand_fn_t) (struct strbuf *sb, - const char *placeholder, - void *context); -void strbuf_expand(struct strbuf *sb, - const char *format, - expand_fn_t fn, - void *context); +size_t strbuf_expand_literal(struct strbuf *sb, const char *placeholder); /** - * Used as callback for `strbuf_expand` to only expand literals - * (i.e. %n and %xNN). The context argument is ignored. + * If the string pointed to by `formatp` contains a percent sign ("%"), + * advance it to point to the character following the next one and + * return 1, otherwise return 0. Append the substring before that + * percent sign to `sb`, or the whole string if there is none. */ -size_t strbuf_expand_literal_cb(struct strbuf *sb, - const char *placeholder, - void *context); - -/** - * Used as callback for `strbuf_expand()`, expects an array of - * struct strbuf_expand_dict_entry as context, i.e. pairs of - * placeholder and replacement string. The array needs to be - * terminated by an entry with placeholder set to NULL. - */ -struct strbuf_expand_dict_entry { - const char *placeholder; - const char *value; -}; -size_t strbuf_expand_dict_cb(struct strbuf *sb, - const char *placeholder, - void *context); +int strbuf_expand_step(struct strbuf *sb, const char **formatp); /** * Append the contents of one strbuf to another, quoting any |