From 2735d0606bd871584b2e6343f3dce4c1a155b296 Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Mon, 7 Mar 2011 20:37:19 -0800 Subject: [PATCH] * coding.c (Fdefine_coding_system_internal): Don't redeclare 'i' inside a block, when the outer 'i' will do. (decode_coding_utf_8, decode_coding_utf_16, detect_coding_emacs_mule): (emacs_mule_char, decode_coding_emacs_mule, detect_coding_iso_2022): (decode_coding_iso_2022, decode_coding_sjis, decode_coding_big5): (decode_coding_raw_text, decode_coding_charset, get_translation_table): (Fdecode_sjis_char, Fdefine_coding_system_internal): Rename locals to avoid shadowing. * character.h (FETCH_STRING_CHAR_ADVANCE): Likewise. --- src/ChangeLog | 9 +++++ src/character.h | 8 ++-- src/coding.c | 101 ++++++++++++++++++++++++------------------------ 3 files changed, 63 insertions(+), 55 deletions(-) diff --git a/src/ChangeLog b/src/ChangeLog index b88ff2ccbb4..bbcc067fecd 100644 --- a/src/ChangeLog +++ b/src/ChangeLog @@ -41,6 +41,15 @@ * coding.c (coding_set_source, coding_set_destination): Use "else { /* comment */ }" rather than "else /* comment */;" for clarity, and to avoid gcc -Wempty-body warning. + (Fdefine_coding_system_internal): Don't redeclare 'i' inside + a block, when the outer 'i' will do. + (decode_coding_utf_8, decode_coding_utf_16, detect_coding_emacs_mule): + (emacs_mule_char, decode_coding_emacs_mule, detect_coding_iso_2022): + (decode_coding_iso_2022, decode_coding_sjis, decode_coding_big5): + (decode_coding_raw_text, decode_coding_charset, get_translation_table): + (Fdecode_sjis_char, Fdefine_coding_system_internal): + Rename locals to avoid shadowing. + * character.h (FETCH_STRING_CHAR_ADVANCE): Likewise. 2011-03-06 Chong Yidong diff --git a/src/character.h b/src/character.h index fb29ced66b7..d29ab41557b 100644 --- a/src/character.h +++ b/src/character.h @@ -356,11 +356,11 @@ along with GNU Emacs. If not, see . */ CHARIDX++; \ if (STRING_MULTIBYTE (STRING)) \ { \ - unsigned char *ptr = &SDATA (STRING)[BYTEIDX]; \ - int len; \ + unsigned char *string_ptr = &SDATA (STRING)[BYTEIDX]; \ + int string_len; \ \ - OUTPUT = STRING_CHAR_AND_LENGTH (ptr, len); \ - BYTEIDX += len; \ + OUTPUT = STRING_CHAR_AND_LENGTH (string_ptr, string_len); \ + BYTEIDX += string_len; \ } \ else \ { \ diff --git a/src/coding.c b/src/coding.c index cb13793daba..495e8148b05 100644 --- a/src/coding.c +++ b/src/coding.c @@ -1320,7 +1320,7 @@ decode_coding_utf_8 (struct coding_system *coding) int multibytep = coding->src_multibyte; enum utf_bom_type bom = CODING_UTF_8_BOM (coding); Lisp_Object attr, charset_list; - int eol_crlf = + int eol_dos = !inhibit_eol_conversion && EQ (CODING_ID_EOL_TYPE (coding->id), Qdos); int byte_after_cr = -1; @@ -1381,7 +1381,7 @@ decode_coding_utf_8 (struct coding_system *coding) } else if (UTF_8_1_OCTET_P (c1)) { - if (eol_crlf && c1 == '\r') + if (eol_dos && c1 == '\r') ONE_MORE_BYTE (byte_after_cr); c = c1; } @@ -1639,7 +1639,7 @@ decode_coding_utf_16 (struct coding_system *coding) enum utf_16_endian_type endian = CODING_UTF_16_ENDIAN (coding); int surrogate = CODING_UTF_16_SURROGATE (coding); Lisp_Object attr, charset_list; - int eol_crlf = + int eol_dos = !inhibit_eol_conversion && EQ (CODING_ID_EOL_TYPE (coding->id), Qdos); int byte_after_cr1 = -1, byte_after_cr2 = -1; @@ -1736,7 +1736,7 @@ decode_coding_utf_16 (struct coding_system *coding) CODING_UTF_16_SURROGATE (coding) = surrogate = c; else { - if (eol_crlf && c == '\r') + if (eol_dos && c == '\r') { ONE_MORE_BYTE (byte_after_cr1); ONE_MORE_BYTE (byte_after_cr2); @@ -1920,17 +1920,17 @@ detect_coding_emacs_mule (struct coding_system *coding, it because analyzing it is too heavy for detecting. But, at least, we check that the composite character constitutes of more than 4 bytes. */ - const unsigned char *src_base; + const unsigned char *src_start; repeat: - src_base = src; + src_start = src; do { ONE_MORE_BYTE (c); } while (c >= 0xA0); - if (src - src_base <= 4) + if (src - src_start <= 4) break; found = CATEGORY_MASK_EMACS_MULE; if (c == 0x80) @@ -1990,7 +1990,7 @@ emacs_mule_char (struct coding_system *coding, const unsigned char *src, const unsigned char *src_end = coding->source + coding->src_bytes; const unsigned char *src_base = src; int multibytep = coding->src_multibyte; - int charset_id; + int charset_ID; unsigned code; int c; int consumed_chars = 0; @@ -2000,7 +2000,7 @@ emacs_mule_char (struct coding_system *coding, const unsigned char *src, if (c < 0) { c = -c; - charset_id = emacs_mule_charset[0]; + charset_ID = emacs_mule_charset[0]; } else { @@ -2036,7 +2036,7 @@ emacs_mule_char (struct coding_system *coding, const unsigned char *src, switch (emacs_mule_bytes[c]) { case 2: - if ((charset_id = emacs_mule_charset[c]) < 0) + if ((charset_ID = emacs_mule_charset[c]) < 0) goto invalid_code; ONE_MORE_BYTE (c); if (c < 0xA0) @@ -2049,7 +2049,7 @@ emacs_mule_char (struct coding_system *coding, const unsigned char *src, || c == EMACS_MULE_LEADING_CODE_PRIVATE_12) { ONE_MORE_BYTE (c); - if (c < 0xA0 || (charset_id = emacs_mule_charset[c]) < 0) + if (c < 0xA0 || (charset_ID = emacs_mule_charset[c]) < 0) goto invalid_code; ONE_MORE_BYTE (c); if (c < 0xA0) @@ -2058,7 +2058,7 @@ emacs_mule_char (struct coding_system *coding, const unsigned char *src, } else { - if ((charset_id = emacs_mule_charset[c]) < 0) + if ((charset_ID = emacs_mule_charset[c]) < 0) goto invalid_code; ONE_MORE_BYTE (c); if (c < 0xA0) @@ -2073,7 +2073,7 @@ emacs_mule_char (struct coding_system *coding, const unsigned char *src, case 4: ONE_MORE_BYTE (c); - if (c < 0 || (charset_id = emacs_mule_charset[c]) < 0) + if (c < 0 || (charset_ID = emacs_mule_charset[c]) < 0) goto invalid_code; ONE_MORE_BYTE (c); if (c < 0xA0) @@ -2087,21 +2087,21 @@ emacs_mule_char (struct coding_system *coding, const unsigned char *src, case 1: code = c; - charset_id = ASCII_BYTE_P (code) ? charset_ascii : charset_eight_bit; + charset_ID = ASCII_BYTE_P (code) ? charset_ascii : charset_eight_bit; break; default: abort (); } CODING_DECODE_CHAR (coding, src, src_base, src_end, - CHARSET_FROM_ID (charset_id), code, c); + CHARSET_FROM_ID (charset_ID), code, c); if (c < 0) goto invalid_code; } *nbytes = src - src_base; *nchars = consumed_chars; if (id) - *id = charset_id; + *id = charset_ID; return (mseq_found ? -c : c); no_more_source: @@ -2374,7 +2374,7 @@ decode_coding_emacs_mule (struct coding_system *coding) int char_offset = coding->produced_char; int last_offset = char_offset; int last_id = charset_ascii; - int eol_crlf = + int eol_dos = !inhibit_eol_conversion && EQ (CODING_ID_EOL_TYPE (coding->id), Qdos); int byte_after_cr = -1; struct composition_status *cmp_status = &coding->spec.emacs_mule.cmp_status; @@ -2424,7 +2424,7 @@ decode_coding_emacs_mule (struct coding_system *coding) if (c < 0x80) { - if (eol_crlf && c == '\r') + if (eol_dos && c == '\r') ONE_MORE_BYTE (byte_after_cr); id = charset_ascii; if (cmp_status->state != COMPOSING_NO) @@ -3160,7 +3160,7 @@ detect_coding_iso_2022 (struct coding_system *coding, if (! single_shifting && ! (rejected & CATEGORY_MASK_ISO_8_2)) { - int i = 1; + int len = 1; while (src < src_end) { src_base = src; @@ -3170,20 +3170,20 @@ detect_coding_iso_2022 (struct coding_system *coding, src = src_base; break; } - i++; + len++; } - if (i & 1 && src < src_end) + if (len & 1 && src < src_end) { rejected |= CATEGORY_MASK_ISO_8_2; if (composition_count >= 0) - composition_count += i; + composition_count += len; } else { found |= CATEGORY_MASK_ISO_8_2; if (composition_count >= 0) - composition_count += i / 2; + composition_count += len / 2; } } break; @@ -3311,10 +3311,10 @@ detect_coding_iso_2022 (struct coding_system *coding, } \ else /* new format (after ver.21) */ \ { \ - int c; \ + int b; \ \ - ONE_MORE_BYTE (c); \ - rule = COMPOSITION_ENCODE_RULE (rule - 81, c - 32); \ + ONE_MORE_BYTE (b); \ + rule = COMPOSITION_ENCODE_RULE (rule - 81, b - 32); \ if (rule >= 0) \ rule += 0x100; /* to destinguish it from the old format */ \ nbytes = 2; \ @@ -3506,7 +3506,7 @@ decode_coding_iso_2022 (struct coding_system *coding) int char_offset = coding->produced_char; int last_offset = char_offset; int last_id = charset_ascii; - int eol_crlf = + int eol_dos = !inhibit_eol_conversion && EQ (CODING_ID_EOL_TYPE (coding->id), Qdos); int byte_after_cr = -1; int i; @@ -3626,7 +3626,7 @@ decode_coding_iso_2022 (struct coding_system *coding) break; case ISO_control_0: - if (eol_crlf && c1 == '\r') + if (eol_dos && c1 == '\r') ONE_MORE_BYTE (byte_after_cr); MAYBE_FINISH_COMPOSITION (); charset = CHARSET_FROM_ID (charset_ascii); @@ -4031,7 +4031,6 @@ decode_coding_iso_2022 (struct coding_system *coding) const char *intermediate_char_94 = "()*+"; \ const char *intermediate_char_96 = ",-./"; \ int revision = -1; \ - int c; \ \ if (CODING_ISO_FLAGS (coding) & CODING_ISO_FLAG_REVISION) \ revision = CHARSET_ISO_REVISION (charset); \ @@ -4044,11 +4043,12 @@ decode_coding_iso_2022 (struct coding_system *coding) EMIT_ONE_ASCII_BYTE (ISO_CODE_ESC); \ if (CHARSET_DIMENSION (charset) == 1) \ { \ + int b; \ if (! CHARSET_ISO_CHARS_96 (charset)) \ - c = intermediate_char_94[reg]; \ + b = intermediate_char_94[reg]; \ else \ - c = intermediate_char_96[reg]; \ - EMIT_ONE_ASCII_BYTE (c); \ + b = intermediate_char_96[reg]; \ + EMIT_ONE_ASCII_BYTE (b); \ } \ else \ { \ @@ -4709,7 +4709,7 @@ decode_coding_sjis (struct coding_system *coding) int char_offset = coding->produced_char; int last_offset = char_offset; int last_id = charset_ascii; - int eol_crlf = + int eol_dos = !inhibit_eol_conversion && EQ (CODING_ID_EOL_TYPE (coding->id), Qdos); int byte_after_cr = -1; @@ -4744,7 +4744,7 @@ decode_coding_sjis (struct coding_system *coding) goto invalid_code; if (c < 0x80) { - if (eol_crlf && c == '\r') + if (eol_dos && c == '\r') ONE_MORE_BYTE (byte_after_cr); charset = charset_roman; } @@ -4826,7 +4826,7 @@ decode_coding_big5 (struct coding_system *coding) int char_offset = coding->produced_char; int last_offset = char_offset; int last_id = charset_ascii; - int eol_crlf = + int eol_dos = !inhibit_eol_conversion && EQ (CODING_ID_EOL_TYPE (coding->id), Qdos); int byte_after_cr = -1; @@ -4859,7 +4859,7 @@ decode_coding_big5 (struct coding_system *coding) goto invalid_code; if (c < 0x80) { - if (eol_crlf && c == '\r') + if (eol_dos && c == '\r') ONE_MORE_BYTE (byte_after_cr); charset = charset_roman; } @@ -5263,13 +5263,13 @@ encode_coding_ccl (struct coding_system *coding) static void decode_coding_raw_text (struct coding_system *coding) { - int eol_crlf = + int eol_dos = !inhibit_eol_conversion && EQ (CODING_ID_EOL_TYPE (coding->id), Qdos); coding->chars_at_source = 1; coding->consumed_char = coding->src_chars; coding->consumed = coding->src_bytes; - if (eol_crlf && coding->source[coding->src_bytes - 1] == '\r') + if (eol_dos && coding->source[coding->src_bytes - 1] == '\r') { coding->consumed_char--; coding->consumed--; @@ -5482,7 +5482,7 @@ decode_coding_charset (struct coding_system *coding) int char_offset = coding->produced_char; int last_offset = char_offset; int last_id = charset_ascii; - int eol_crlf = + int eol_dos = !inhibit_eol_conversion && EQ (CODING_ID_EOL_TYPE (coding->id), Qdos); int byte_after_cr = -1; @@ -5516,7 +5516,7 @@ decode_coding_charset (struct coding_system *coding) else { ONE_MORE_BYTE (c); - if (eol_crlf && c == '\r') + if (eol_dos && c == '\r') ONE_MORE_BYTE (byte_after_cr); } if (c < 0) @@ -6609,15 +6609,15 @@ get_translation_table (Lisp_Object attrs, int encodep, int *max_lookup) } else if (CONSP (translation_table)) { - Lisp_Object tail, val; + Lisp_Object tail; for (tail = translation_table; CONSP (tail); tail = XCDR (tail)) if (CHAR_TABLE_P (XCAR (tail)) && CHAR_TABLE_EXTRA_SLOTS (XCHAR_TABLE (XCAR (tail))) > 1) { - val = XCHAR_TABLE (XCAR (tail))->extras[1]; - if (NATNUMP (val) && *max_lookup < XFASTINT (val)) - *max_lookup = XFASTINT (val); + Lisp_Object tailval = XCHAR_TABLE (XCAR (tail))->extras[1]; + if (NATNUMP (tailval) && *max_lookup < XFASTINT (tailval)) + *max_lookup = XFASTINT (tailval); } } } @@ -9114,10 +9114,10 @@ Return the corresponding character. */) } else { - int s1 = c >> 8, s2 = c & 0xFF; + int c1 = c >> 8, c2 = c & 0xFF; - if (s1 < 0x81 || (s1 > 0x9F && s1 < 0xE0) || s1 > 0xEF - || s2 < 0x40 || s2 == 0x7F || s2 > 0xFC) + if (c1 < 0x81 || (c1 > 0x9F && c1 < 0xE0) || c1 > 0xEF + || c2 < 0x40 || c2 == 0x7F || c2 > 0xFC) error ("Invalid code: %d", code); SJIS_TO_JIS (c); charset = charset_kanji; @@ -9800,7 +9800,6 @@ usage: (define-coding-system-internal ...) */) else if (EQ (coding_type, Qiso_2022)) { Lisp_Object initial, reg_usage, request, flags; - int i; if (nargs < coding_arg_iso2022_max) goto short_args; @@ -9832,12 +9831,12 @@ usage: (define-coding-system-internal ...) */) for (tail = request; ! NILP (tail); tail = Fcdr (tail)) { int id; - Lisp_Object tmp; + Lisp_Object tmp1; val = Fcar (tail); CHECK_CONS (val); - tmp = XCAR (val); - CHECK_CHARSET_GET_ID (tmp, id); + tmp1 = XCAR (val); + CHECK_CHARSET_GET_ID (tmp1, id); CHECK_NATNUM_CDR (val); if (XINT (XCDR (val)) >= 4) error ("Invalid graphic register number: %d", XINT (XCDR (val))); -- 2.39.5