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[PATCH v9 01/11] ref-filter: print output to strbuf for formatting

From
Karthik Nayak <karthik.188@gmail.com>
Date
Aug 4, 2015, 12:42 UTC
Message-ID
<1438692188-14367-1-git-send-email-Karthik.188@gmail.com>
In-Reply-To
<CAOLa=ZSBMk9y1VGTVKSVsGMdYuPtjhPADciVUaEVwESRdSvWZg@mail.gmail.com>

Introduce a strbuf `output` which will act as a substitute rather than printing directly to stdout. This will be used for formatting eventually.

Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr>
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
---
 ref-filter.c | 36 ++++++++++++++++++------------------
 1 file changed, 18 insertions(+), 18 deletions(-)
diff --git a/ref-filter.c b/ref-filter.c
index 46963a5..91482c9 100644
--- a/ref-filter.c
+++ b/ref-filter.c
@@ -1190,30 +1190,25 @@ void ref_array_sort(struct ref_sorting *sorting, struct ref_array *array)
 	qsort(array->items, array->nr, sizeof(struct ref_array_item *), compare_refs);
 }
 
-static void print_value(struct atom_value *v, int quote_style)
+static void print_value(struct atom_value *v, int quote_style, struct strbuf *output)
 {
-	struct strbuf sb = STRBUF_INIT;
 	switch (quote_style) {
 	case QUOTE_NONE:
-		fputs(v->s, stdout);
+		strbuf_addstr(output, v->s);
 		break;
 	case QUOTE_SHELL:
-		sq_quote_buf(&sb, v->s);
+		sq_quote_buf(output, v->s);
 		break;
 	case QUOTE_PERL:
-		perl_quote_buf(&sb, v->s);
+		perl_quote_buf(output, v->s);
 		break;
 	case QUOTE_PYTHON:
-		python_quote_buf(&sb, v->s);
+		python_quote_buf(output, v->s);
 		break;
 	case QUOTE_TCL:
-		tcl_quote_buf(&sb, v->s);
+		tcl_quote_buf(output, v->s);
 		break;
 	}
-	if (quote_style != QUOTE_NONE) {
-		fputs(sb.buf, stdout);
-		strbuf_release(&sb);
-	}
 }
 
 static int hex1(char ch)
@@ -1234,7 +1229,7 @@ static int hex2(const char *cp)
 		return -1;
 }
 
-static void emit(const char *cp, const char *ep)
+static void emit(const char *cp, const char *ep, struct strbuf *output)
 {
 	while (*cp && (!ep || cp < ep)) {
 		if (*cp == '%') {
@@ -1243,13 +1238,13 @@ static void emit(const char *cp, const char *ep)
 			else {
 				int ch = hex2(cp + 1);
 				if (0 <= ch) {
-					putchar(ch);
+					strbuf_addch(output, ch);
 					cp += 3;
 					continue;
 				}
 			}
 		}
-		putchar(*cp);
+		strbuf_addch(output, *cp);
 		cp++;
 	}
 }
@@ -1257,19 +1252,21 @@ static void emit(const char *cp, const char *ep)
 void show_ref_array_item(struct ref_array_item *info, const char *format, int quote_style)
 {
 	const char *cp, *sp, *ep;
+	struct strbuf output = STRBUF_INIT;
+	int i;
 
 	for (cp = format; *cp && (sp = find_next(cp)); cp = ep + 1) {
 		struct atom_value *atomv;
 
 		ep = strchr(sp, ')');
 		if (cp < sp)
-			emit(cp, sp);
+			emit(cp, sp, &output);
 		get_ref_atom_value(info, parse_ref_filter_atom(sp + 2, ep), &atomv);
-		print_value(atomv, quote_style);
+		print_value(atomv, quote_style, &output);
 	}
 	if (*cp) {
 		sp = cp + strlen(cp);
-		emit(cp, sp);
+		emit(cp, sp, &output);
 	}
 	if (need_color_reset_at_eol) {
 		struct atom_value resetv;
@@ -1278,9 +1275,12 @@ void show_ref_array_item(struct ref_array_item *info, const char *format, int qu
 		if (color_parse("reset", color) < 0)
 			die("BUG: couldn't parse 'reset' as a color");
 		resetv.s = color;
-		print_value(&resetv, quote_style);
+		print_value(&resetv, quote_style, &output);
 	}
+	for (i = 0; i < output.len; i++)
+		printf("%c", output.buf[i]);
 	putchar('\n');
+	strbuf_release(&output);
 }
 
 /*  If no sorting option is given, use refname to sort as default */
-- 
2.5.0
Previous: Karthik NayakNext: Karthik Nayak
Message 2 of 21 in “Port tag.c over to use ref-filter APIs”
  1. 0/11 Port tag.c over to use ref-filter APIsKarthik Nayak, Aug 4, 2015
  2. 01/11 ref-filter: print output to strbuf for formattingKarthik Nayak, Aug 4, 2015
  3. 02/11 ref-filter: introduce ref_formatting_stateKarthik Nayak, Aug 4, 2015
  4. Eric SunshineAug 7, 2015
  5. Karthik NayakAug 7, 2015
  6. Eric SunshineAug 7, 2015
  7. Karthik NayakAug 7, 2015
  8. Eric SunshineAug 7, 2015
  9. Karthik NayakAug 7, 2015
  10. Eric SunshineAug 7, 2015
  11. 03/11 ref-filter: implement an `align` atomKarthik Nayak, Aug 4, 2015
  12. 04/11 ref-filter: add option to filter only tagsKarthik Nayak, Aug 4, 2015
  13. 05/11 ref-filter: support printing N lines from tag annotationKarthik Nayak, Aug 4, 2015
  14. 06/11 ref-filter: add support to sort by versionKarthik Nayak, Aug 4, 2015
  15. 07/11 ref-filter: add option to match literal patternKarthik Nayak, Aug 4, 2015
  16. 08/11 tag.c: use 'ref-filter' data structuresKarthik Nayak, Aug 4, 2015
  17. 09/11 tag.c: use 'ref-filter' APIsKarthik Nayak, Aug 4, 2015
  18. 10/11 tag.c: implement '--format' optionKarthik Nayak, Aug 4, 2015
  19. 11/11 tag.c: implement '--merged' and '--no-merged' optionsKarthik Nayak, Aug 4, 2015
  20. Eric SunshineAug 6, 2015
  21. Karthik NayakAug 7, 2015

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