move duplicate code from the +LINE,COLUMN feature into a separate

function, parse_line_column()


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@2517 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -15,8 +15,8 @@ CVS code -
 	  various comments. (DLR)
 	- Add the ability to open a file on a specified column as well
 	  as a specified line, by allowing an argument of the form
-	  +LINE,COLUMN.  Changes to main(), nano.1, and nano.texi. (DLR,
-	  suggested by PFTank)
+	  +LINE,COLUMN.  New function parse_line_column(); changes to
+	  main(), nano.1, and nano.texi. (DLR, suggested by PFTank)
 - cut.c:
   cut_line()
 	- Set placewewant properly after cutting a line, to avoid a

src/nano.c

@@ -4427,13 +4427,7 @@ int main(int argc, char **argv)
      * non-option argument, and it is followed by at least one other
      * argument, the filename it applies to. */
     if (0 < optind && optind < argc - 1 && argv[optind][0] == '+') {
-	char *comma = strchr(&argv[optind][1], ',');
-
-	if (comma != NULL)
-	    parse_num(&argv[optind][comma - argv[optind] + 1],
-		&startcol);
-
-	startline = atoi(&argv[optind][1]);
+	parse_line_column(&argv[optind][1], &startline, &startcol);
 	optind++;
     }
 
@@ -4453,12 +4447,7 @@ int main(int argc, char **argv)
 	     * applies to. */
 	    if (i < argc - 1 && argv[i][0] == '+' && iline == 1 &&
 		icol == 1) {
-		char *comma = strchr(&argv[i][1], ',');
-
-		if (comma != NULL)
-		    parse_num(&argv[i][comma - argv[i] + 1], &icol);
-
-		iline = atoi(&argv[i][1]);
+		parse_line_column(&argv[i][1], &iline, &icol);
 	    } else {
 		load_buffer(argv[i]);
 

src/proto.h

@@ -547,6 +547,7 @@ int regexp_bol_or_eol(const regex_t *preg, const char *string);
 int digits(size_t n);
 void get_homedir(void);
 bool parse_num(const char *str, ssize_t *val);
+void parse_line_column(const char *str, int *line, ssize_t *column);
 void align(char **strp);
 void null_at(char **data, size_t index);
 void unsunder(char *str, size_t true_len);

src/utils.c

@@ -105,6 +105,21 @@ bool parse_num(const char *str, ssize_t *val)
     return TRUE;
 }
 
+void parse_line_column(const char *str, int *line, ssize_t *column)
+{
+    char *comma;
+
+    assert(str != NULL);
+
+    comma = strchr(str, ',');
+
+    if (comma != NULL && column != NULL)
+	parse_num(&str[comma - str + 1], column);
+
+    if (line != NULL)
+	*line = atoi(str);
+}
+
 /* Fix the memory allocation for a string. */
 void align(char **strp)
 {