packaging: make a option to select enable/disable tools

[platform/upstream/libxkbcommon.git] / src / scanner-utils.h

diff --git a/src/scanner-utils.h b/src/scanner-utils.h
index ba47f69..674ecaa 100644 (file)
--- a/src/scanner-utils.h
+++ b/src/scanner-utils.h
@@ -34,13 +34,13 @@ typedef darray(struct sval) darray_sval;
 static inline bool
 svaleq(struct sval s1, struct sval s2)
 {
-    return s1.len == s2.len && strncmp(s1.start, s2.start, s1.len) == 0;
+    return s1.len == s2.len && memcmp(s1.start, s2.start, s1.len) == 0;
 }
 
 static inline bool
 svaleq_prefix(struct sval s1, struct sval s2)
 {
-    return s1.len <= s2.len && strncmp(s1.start, s2.start, s1.len) == 0;
+    return s1.len <= s2.len && memcmp(s1.start, s2.start, s1.len) == 0;
 }
 
 struct scanner {
@@ -49,29 +49,43 @@ struct scanner {
     size_t len;
     char buf[1024];
     size_t buf_pos;
-    unsigned line, column;
+    size_t line, column;
     /* The line/column of the start of the current token. */
-    unsigned token_line, token_column;
+    size_t token_line, token_column;
     const char *file_name;
     struct xkb_context *ctx;
     void *priv;
 };
 
+#define scanner_log_with_code(scanner, level, log_msg_id, fmt, ...) \
+    xkb_log_with_code((scanner)->ctx, (level), 0, log_msg_id, \
+                    "%s:%zu:%zu: " fmt "\n", \
+                    (scanner)->file_name, \
+                    (scanner)->token_line, \
+                    (scanner)->token_column, ##__VA_ARGS__)
+
 #define scanner_log(scanner, level, fmt, ...) \
     xkb_log((scanner)->ctx, (level), 0, \
-            "%s:%u:%u: " fmt "\n", \
-             (scanner)->file_name, \
-             (scanner)->token_line, (scanner)->token_column, ##__VA_ARGS__)
+            "%s:%zu:%zu: " fmt "\n", \
+            (scanner)->file_name, \
+            (scanner)->token_line, (scanner)->token_column, ##__VA_ARGS__)
+
+#define scanner_err_with_code(scanner, id, fmt, ...) \
+    scanner_log_with_code(scanner, XKB_LOG_LEVEL_ERROR, id, fmt, ##__VA_ARGS__)
 
 #define scanner_err(scanner, fmt, ...) \
     scanner_log(scanner, XKB_LOG_LEVEL_ERROR, fmt, ##__VA_ARGS__)
 
+#define scanner_warn_with_code(scanner, id, fmt, ...) \
+    scanner_log_with_code(scanner, XKB_LOG_LEVEL_WARNING, id, fmt, ##__VA_ARGS__)
+
 #define scanner_warn(scanner, fmt, ...) \
     scanner_log(scanner, XKB_LOG_LEVEL_WARNING, fmt, ##__VA_ARGS__)
 
 static inline void
 scanner_init(struct scanner *s, struct xkb_context *ctx,
-             const char *string, size_t len, const char *file_name)
+             const char *string, size_t len, const char *file_name,
+             void *priv)
 {
     s->s = string;
     s->len = len;
@@ -80,10 +94,11 @@ scanner_init(struct scanner *s, struct xkb_context *ctx,
     s->token_line = s->token_column = 1;
     s->file_name = file_name;
     s->ctx = ctx;
+    s->priv = priv;
 }
 
 static inline char
-peek(struct scanner *s)
+scanner_peek(struct scanner *s)
 {
     if (unlikely(s->pos >= s->len))
         return '\0';
@@ -91,23 +106,32 @@ peek(struct scanner *s)
 }
 
 static inline bool
-eof(struct scanner *s)
+scanner_eof(struct scanner *s)
 {
     return s->pos >= s->len;
 }
 
 static inline bool
-eol(struct scanner *s)
+scanner_eol(struct scanner *s)
+{
+    return scanner_peek(s) == '\n';
+}
+
+static inline void
+scanner_skip_to_eol(struct scanner *s)
 {
-    return peek(s) == '\n';
+    const char *nl = memchr(s->s + s->pos, '\n', s->len - s->pos);
+    const size_t new_pos = nl ? (size_t) (nl - s->s) : s->len;
+    s->column += new_pos - s->pos;
+    s->pos = new_pos;
 }
 
 static inline char
-next(struct scanner *s)
+scanner_next(struct scanner *s)
 {
-    if (unlikely(eof(s)))
+    if (unlikely(scanner_eof(s)))
         return '\0';
-    if (unlikely(eol(s))) {
+    if (unlikely(scanner_eol(s))) {
         s->line++;
         s->column = 1;
     }
@@ -118,16 +142,16 @@ next(struct scanner *s)
 }
 
 static inline bool
-chr(struct scanner *s, char ch)
+scanner_chr(struct scanner *s, char ch)
 {
-    if (likely(peek(s) != ch))
+    if (likely(scanner_peek(s) != ch))
         return false;
     s->pos++; s->column++;
     return true;
 }
 
 static inline bool
-str(struct scanner *s, const char *string, size_t len)
+scanner_str(struct scanner *s, const char *string, size_t len)
 {
     if (s->len - s->pos < len)
         return false;
@@ -137,10 +161,10 @@ str(struct scanner *s, const char *string, size_t len)
     return true;
 }
 
-#define lit(s, literal) str(s, literal, sizeof(literal) - 1)
+#define scanner_lit(s, literal) scanner_str(s, literal, sizeof(literal) - 1)
 
 static inline bool
-buf_append(struct scanner *s, char ch)
+scanner_buf_append(struct scanner *s, char ch)
 {
     if (s->buf_pos + 1 >= sizeof(s->buf))
         return false;
@@ -149,7 +173,7 @@ buf_append(struct scanner *s, char ch)
 }
 
 static inline bool
-buf_appends(struct scanner *s, const char *str)
+scanner_buf_appends(struct scanner *s, const char *str)
 {
     int ret;
     ret = snprintf(s->buf + s->buf_pos, sizeof(s->buf) - s->buf_pos, "%s", str);
@@ -160,20 +184,27 @@ buf_appends(struct scanner *s, const char *str)
 }
 
 static inline bool
-oct(struct scanner *s, uint8_t *out)
+scanner_oct(struct scanner *s, uint8_t *out)
 {
     int i;
-    for (i = 0, *out = 0; peek(s) >= '0' && peek(s) <= '7' && i < 3; i++)
-        *out = *out * 8 + next(s) - '0';
+    for (i = 0, *out = 0; scanner_peek(s) >= '0' && scanner_peek(s) <= '7' && i < 3; i++)
+        /* Test overflow */
+        if (*out < 040) {
+            *out = *out * 8 + scanner_next(s) - '0';
+        } else {
+            /* Consume valid digit, but mark result as invalid */
+            scanner_next(s);
+            return false;
+        }
     return i > 0;
 }
 
 static inline bool
-hex(struct scanner *s, uint8_t *out)
+scanner_hex(struct scanner *s, uint8_t *out)
 {
     int i;
-    for (i = 0, *out = 0; is_xdigit(peek(s)) && i < 2; i++) {
-        const char c = next(s);
+    for (i = 0, *out = 0; is_xdigit(scanner_peek(s)) && i < 2; i++) {
+        const char c = scanner_next(s);
         const char offset = (c >= '0' && c <= '9' ? '0' :
                              c >= 'a' && c <= 'f' ? 'a' - 10 : 'A' - 10);
         *out = *out * 16 + c - offset;