lib/jsonwrt: remove fputs_quoted_json_* functions from include/carefulputc.h

[thirdparty/util-linux.git] / include / carefulputc.h

diff --git a/include/carefulputc.h b/include/carefulputc.h
index 81f1ad4631374fb1d04dc56b7f490233b6d01749..66a0f156a42f07a2664f303fbe14b13a2786ee04 100644 (file)
--- a/include/carefulputc.h
+++ b/include/carefulputc.h
@@ -28,82 +28,6 @@ static inline int fputc_careful(int c, FILE *fp, const char fail)
        return (ret < 0) ? EOF : 0;
 }
 
-/*
- * Requirements enumerated via testing (V8, Firefox, IE11):
- *
- * var charsToEscape = [];
- * for (var i = 0; i < 65535; i += 1) {
- *     try {
- *             JSON.parse('{"sample": "' + String.fromCodePoint(i) + '"}');
- *     } catch (e) {
- *             charsToEscape.push(i);
- *     }
- * }
- */
-static inline void fputs_quoted_case_json(const char *data, FILE *out, int dir)
-{
-       const char *p;
-
-       fputc('"', out);
-       for (p = data; p && *p; p++) {
-
-               const unsigned char c = (unsigned char) *p;
-
-               /* From http://www.json.org
-                *
-                * The double-quote and backslashes would break out a string or
-                * init an escape sequence if not escaped.
-                *
-                * Note that single-quotes and forward slashes, while they're
-                * in the JSON spec, don't break double-quoted strings.
-                */
-               if (c == '"' || c == '\\') {
-                       fputc('\\', out);
-                       fputc(c, out);
-                       continue;
-               }
-
-               /* All non-control characters OK; do the case swap as required. */
-               if (c >= 0x20) {
-                       fputc(dir ==  1 ? toupper(c) :
-                             dir == -1 ? tolower(c) : *p, out);
-                       continue;
-               }
-
-               /* In addition, all chars under ' ' break Node's/V8/Chrome's, and
-                * Firefox's JSON.parse function
-                */
-               switch (c) {
-                       /* Handle short-hand cases to reduce output size.  C
-                        * has most of the same stuff here, so if there's an
-                        * "Escape for C" function somewhere in the STL, we
-                        * should probably be using it.
-                        */
-                       case '\b':
-                               fputs("\\b", out);
-                               break;
-                       case '\t':
-                               fputs("\\t", out);
-                               break;
-                       case '\n':
-                               fputs("\\n", out);
-                               break;
-                       case '\f':
-                               fputs("\\f", out);
-                               break;
-                       case '\r':
-                               fputs("\\r", out);
-                               break;
-                       default:
-                               /* Other assorted control characters */
-                               fprintf(out, "\\u00%02x", c);
-                               break;
-               }
-       }
-       fputc('"', out);
-}
-
-
 static inline void fputs_quoted_case(const char *data, FILE *out, int dir)
 {
        const char *p;
@@ -130,10 +54,6 @@ static inline void fputs_quoted_case(const char *data, FILE *out, int dir)
 #define fputs_quoted_upper(_d, _o)     fputs_quoted_case(_d, _o, 1)
 #define fputs_quoted_lower(_d, _o)     fputs_quoted_case(_d, _o, -1)
 
-#define fputs_quoted_json(_d, _o)       fputs_quoted_case_json(_d, _o, 0)
-#define fputs_quoted_json_upper(_d, _o) fputs_quoted_case_json(_d, _o, 1)
-#define fputs_quoted_json_lower(_d, _o) fputs_quoted_case_json(_d, _o, -1)
-
 static inline void fputs_nonblank(const char *data, FILE *out)
 {
        const char *p;