Fix: error if preview type starts with a digit

src/config.c

@@ -180,10 +180,30 @@ static int preview_type_mime(char **type, char **subtype)
     return STAT_OK;
 }
 
+static inline void num_is_text(void)
+{
+    lexer_set_opts(lexer, LEX_OPT_NUMISTEXT);
+}
+
+static inline void reset_lexer_opts(void)
+{
+    lexer_set_opts(lexer, LEX_OPT_NONE);
+}
+
 static int preview_type(char **type, char **subtype, char **ext)
 {
-    CHECK_NULL(preview_type_ext(ext));
-    return preview_type_mime(type, subtype);
+    int ret;
+
+    num_is_text();
+
+    if ((ret = preview_type_ext(ext)) != STAT_NULL)
+        goto exit;
+
+    ret = preview_type_mime(type, subtype);
+
+exit:
+    reset_lexer_opts();
+    return ret;
 }
 
 static struct Option *get_option(char *name)

src/lexer.c

@@ -23,7 +23,8 @@ typedef struct {
 } TokenQueue;
 
 struct Lexer {
-    unsigned int line, col;
+    enum LexerOpts opts;
+    unsigned line, col;
     struct {
         unsigned int line, col;
     } tok_pos;
@@ -153,6 +154,7 @@ Lexer *lexer_init(FILE *f)
     }
 
     init_input_buf(&ctx->input_buf, f);
+    lexer_set_opts(ctx, LEX_OPT_NONE);
     ctx->text_buf = ulist_new(sizeof(char), 1024);
     ctx->line = ctx->col = 1;
     ctx->tok_queue.back = ctx->tok_queue.front = 0;
@@ -160,6 +162,11 @@ Lexer *lexer_init(FILE *f)
     return ctx;
 }
 
+void lexer_set_opts(Lexer *ctx, enum LexerOpts flags)
+{
+    ctx->opts = flags;
+}
+
 void lexer_free(Lexer *ctx)
 {
     ulist_free(ctx->text_buf);
@@ -263,12 +270,23 @@ static inline Token read_int(Lexer *ctx)
 
     record_text(ctx);
     read_while(ctx, isdigit, 1);
-    int i = atoi(get_text(ctx));
+
+    Token tok;
+    char *text = get_text(ctx);
+
+    /* If NUMISTEXT option is set, do not convert string to integer */
+    if (ctx->opts & LEX_OPT_NUMISTEXT) {
+        tok = get_tok(ctx, TOK_STR);
+        tok.val.s = text;
+        return tok;
+    }
+
+    int i = atoi(text);
 
     if (!positive)
         i *= -1;
 
-    Token tok = get_tok(ctx, TOK_INT);
+    tok = get_tok(ctx, TOK_INT);
     tok.val.i = i;
 
     return tok;

src/lexer.h

@@ -10,6 +10,11 @@
 
 typedef struct Lexer Lexer;
 
+enum LexerOpts {
+    LEX_OPT_NONE = 0,
+    LEX_OPT_NUMISTEXT = 1 << 0,
+};
+
 typedef struct {
     unsigned int line, col;
     enum TokenType {
@@ -32,6 +37,7 @@ typedef struct {
 } Token;
 
 Lexer *lexer_init(FILE *f);
+void lexer_set_opts(Lexer *ctx, enum LexerOpts flags);
 void lexer_free(Lexer *ctx);
 Token lexer_get_token(Lexer *ctx);
 char *lexer_token_type_str(enum TokenType type);