Actually make print_wrapped_text() useful

Now, it returns the current column, does not add a newline, and you can
pass a negative indent, to indicate that the indent was already printed.

With this, you can actually continue in the middle of a paragraph, not
having to print everything into a buffer first.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/utf8.c b/utf8.c
index 7c80eeccb4537ab6d4387941c6262c89cab30d33..ea23a6e5dc60bc3683c98a01f9a4e7dd8c7efb18 100644 (file)
--- a/utf8.c
+++ b/utf8.c
@@ -235,12 +235,19 @@ static void print_spaces(int count)
 /*
  * Wrap the text, if necessary. The variable indent is the indent for the
  * first line, indent2 is the indent for all other lines.
+ * If indent is negative, assume that already -indent columns have been
+ * consumed (and no extra indent is necessary for the first line).
  */
-void print_wrapped_text(const char *text, int indent, int indent2, int width)
+int print_wrapped_text(const char *text, int indent, int indent2, int width)
 {
        int w = indent, assume_utf8 = is_utf8(text);
        const char *bol = text, *space = NULL;
 
+       if (indent < 0) {
+               w = -indent;
+               space = text;
+       }
+
        for (;;) {
                char c = *text;
                if (!c || isspace(c)) {
@@ -251,10 +258,9 @@ void print_wrapped_text(const char *text, int indent, int indent2, int width)
                                else
                                        print_spaces(indent);
                                fwrite(start, text - start, 1, stdout);
-                               if (!c) {
-                                       putchar('\n');
-                                       return;
-                               } else if (c == '\t')
+                               if (!c)
+                                       return w;
+                               else if (c == '\t')
                                        w |= 0x07;
                                space = text;
                                w++;
@@ -275,6 +281,7 @@ void print_wrapped_text(const char *text, int indent, int indent2, int width)
                        text++;
                }
        }
+       return w;
 }
 
 int is_encoding_utf8(const char *name)

diff --git a/utf8.h b/utf8.h
index a07c5a88af63d41ae963f230510a33d78b68a525..15db6f1f27ef7a1f056d5b6adca901f092036f82 100644 (file)
--- a/utf8.h
+++ b/utf8.h
@@ -5,7 +5,7 @@ int utf8_width(const char **start);
 int is_utf8(const char *text);
 int is_encoding_utf8(const char *name);
 
-void print_wrapped_text(const char *text, int indent, int indent2, int len);
+int print_wrapped_text(const char *text, int indent, int indent2, int len);
 
 #ifndef NO_ICONV
 char *reencode_string(const char *in, const char *out_encoding, const char *in_encoding);