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Update.
1998-04-21 20:32 Ulrich Drepper <drepper@cygnus.com> * iconv/loop.c: Allow EXTRA_LOOP_DECLS be defined and use it in function declaration. * iconv/skeleton.c: Allow PREPARE_LOOP and EXTRA_LOOP_ARGS be defined and use them in conversion function. * iconvdata/Makefile (modules): Re-add ISO6446. * iconvdata/TEST: Add tests for ASCII variants. * iconvdata/iso646.c: Rewrite to use loop.c and skeleton.c. * iconvdata/testdata/ANSI_X3.4-1968: New file. * iconvdata/testdata/BS_4730: New file. * iconvdata/testdata/BS_4730..UTF8: New file.
This commit is contained in:
Ulrich Drepper
parent
9ce5071a3d
commit
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13
ChangeLog
13
ChangeLog
@ -1,3 +1,16 @@
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1998-04-21 20:32 Ulrich Drepper <drepper@cygnus.com>
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* iconv/loop.c: Allow EXTRA_LOOP_DECLS be defined and use it in
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function declaration.
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* iconv/skeleton.c: Allow PREPARE_LOOP and EXTRA_LOOP_ARGS be defined
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and use them in conversion function.
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* iconvdata/Makefile (modules): Re-add ISO6446.
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* iconvdata/TEST: Add tests for ASCII variants.
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* iconvdata/iso646.c: Rewrite to use loop.c and skeleton.c.
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* iconvdata/testdata/ANSI_X3.4-1968: New file.
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* iconvdata/testdata/BS_4730: New file.
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* iconvdata/testdata/BS_4730..UTF8: New file.
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1998-04-21 19:05 Ulrich Drepper <drepper@cygnus.com>
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* iconv/gconv.h (struct gconv_step): Add element stateful.
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12
iconv/loop.c
12
iconv/loop.c
@ -43,6 +43,8 @@
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BODY this is supposed to expand to the body of the loop.
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The user must provide this.
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EXTRA_LOOP_DECLS Extra arguments passed from converion loop call.
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*/
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#include <gconv.h>
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@ -106,11 +108,18 @@
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#endif
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/* If no arguments have to passed to the loop function define the macro
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as empty. */
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#ifndef EXTRA_LOOP_DECLS
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# define EXTRA_LOOP_DECLS
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#endif
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/* The function returns the status, as defined in gconv.h. */
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static inline int
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LOOPFCT (const unsigned char **inptrp, const unsigned char *inend,
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unsigned char **outptrp, unsigned char *outend, mbstate_t *state,
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void *data, size_t *converted)
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void *data, size_t *converted EXTRA_LOOP_DECLS)
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{
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int result = GCONV_OK;
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const unsigned char *inptr = *inptrp;
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@ -222,3 +231,4 @@ LOOPFCT (const unsigned char **inptrp, const unsigned char *inend,
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#undef COUNT_CONVERTED
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#undef BODY
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#undef LOOPFCT
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#undef EXTRA_LOOP_DECLS
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@ -67,6 +67,12 @@
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to cover only those characters up to the error.
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FUNCTION_NAME if not set the conversion function is named `gconv'.
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PREPARE_LOOP optional code preparing the conversion loop. Can
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contain variable definitions.
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EXTRA_LOOP_ARGS optional macro specifying extra arguments passed
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to loop function.
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*/
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#include <assert.h>
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@ -161,6 +167,13 @@ gconv_init (struct gconv_step *step)
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#endif
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/* If no arguments have to passed to the loop function define the macro
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as empty. */
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#ifndef EXTRA_LOOP_ARGS
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# define EXTRA_LOOP_ARGS
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#endif
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/* This is the actual conversion function. */
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#ifndef FUNCTION_NAME
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# define FUNCTION_NAME gconv
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@ -210,6 +223,10 @@ FUNCTION_NAME (struct gconv_step *step, struct gconv_step_data *data,
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char *outend = data->outbufend;
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char *outptr;
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#ifdef PREPARE_LOOP
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PREPARE_LOOP
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#endif
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do
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{
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/* Remember the start value for this round. */
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@ -229,14 +246,16 @@ FUNCTION_NAME (struct gconv_step *step, struct gconv_step_data *data,
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(const unsigned char *) inbufend,
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(unsigned char **) &outbuf,
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(unsigned char *) outend,
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data->statep, step->data, &converted);
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data->statep, step->data, &converted
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EXTRA_LOOP_ARGS);
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else
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/* Run the conversion loop. */
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status = TO_LOOP ((const unsigned char **) inbuf,
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(const unsigned char *) inbufend,
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(unsigned char **) &outbuf,
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(unsigned char *) outend,
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data->statep, step->data, &converted);
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data->statep, step->data, &converted
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EXTRA_LOOP_ARGS);
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/* If this is the last step leave the loop, there is nothgin
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we can do. */
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@ -284,7 +303,7 @@ FUNCTION_NAME (struct gconv_step *step, struct gconv_step_data *data,
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(unsigned char **) &outbuf,
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(unsigned char *) outerr,
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data->statep, step->data,
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&converted);
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&converted EXTRA_LOOP_ARGS);
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else
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/* Run the conversion loop. */
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nstatus = TO_LOOP ((const unsigned char **) inbuf,
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@ -292,7 +311,7 @@ FUNCTION_NAME (struct gconv_step *step, struct gconv_step_data *data,
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(unsigned char **) &outbuf,
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(unsigned char *) outerr,
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data->statep, step->data,
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&converted);
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&converted EXTRA_LOOP_ARGS);
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/* We must run out of output buffer space in this
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rerun. */
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@ -27,7 +27,7 @@ modules := ISO8859-1 ISO8859-2 ISO8859-3 ISO8859-4 ISO8859-5 \
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T.61 ISO_6937 SJIS KOI-8 KOI8-R LATIN-GREEK LATIN-GREEK-1 \
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HP-ROMAN8 EBCDIC-AT-DE EBCDIC-AT-DE-A EBCDIC-CA-FR \
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EUC-KR UHC JOHAB libJIS libKSC BIG5 EUC-JP libGB \
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EUC-CN libCNS EUC-TW # ISO646
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EUC-CN libCNS EUC-TW ISO646
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modules.so := $(addsuffix .so, $(modules))
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@ -39,3 +39,5 @@ ISO-8859-7 ISO-8859-7 Y UTF8
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ISO-8859-8 ISO-8859-8 Y UTF8
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ISO-8859-9 ISO-8859-9 Y UTF8
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ISO-8859-10 ISO-8859-10 Y UCS2 UTF8
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ANSI_X3.4-1968 ANSI_X3.4-1968 Y UTF8
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BS_4730 BS_4730 Y UTF8
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@ -32,9 +32,23 @@
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proofs to be necessary. */
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#include <gconv.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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/* Definitions used in the body of the `gconv' function. */
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#define FROM_LOOP from_ascii
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#define TO_LOOP to_ascii
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#define DEFINE_INIT 0
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#define DEFINE_FINI 0
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#define MIN_NEEDED_FROM 1
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#define MIN_NEEDED_TO 4
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#define FROM_DIRECTION dir == from_iso646
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#define PREPARE_LOOP \
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enum direction dir = ((struct iso646_data *) step->data)->dir; \
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enum variant var = ((struct iso646_data *) step->data)->var;
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#define EXTRA_LOOP_ARGS , var
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/* Direction of the transformation. */
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enum direction
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{
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@ -66,22 +80,22 @@ gconv_init (struct gconv_step *step)
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enum variant var;
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int result;
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if (strcasestr (step->from_name, "ANSI_X3.4-1968") != NULL)
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if (__strcasestr (step->from_name, "ANSI_X3.4-1968") != NULL)
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{
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dir = from_iso646;
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var = US;
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}
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else if (strcasestr (step->from_name, "BS_4730") != NULL)
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else if (__strcasestr (step->from_name, "BS_4730") != NULL)
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{
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dir = from_iso646;
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var = GB;
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}
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else if (strcasestr (step->to_name, "ANSI_X3.4-1968") != NULL)
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else if (__strcasestr (step->to_name, "ANSI_X3.4-1968") != NULL)
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{
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dir = to_iso646;
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var = US;
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}
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else if (strcasestr (step->to_name, "BS_4730") != NULL)
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else if (__strcasestr (step->to_name, "BS_4730") != NULL)
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{
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dir = to_iso646;
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var = GB;
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@ -104,6 +118,13 @@ gconv_init (struct gconv_step *step)
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result = GCONV_OK;
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}
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step->min_needed_from = MIN_NEEDED_FROM;
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step->max_needed_from = MIN_NEEDED_FROM;
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step->min_needed_to = MIN_NEEDED_TO;
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step->max_needed_to = MIN_NEEDED_TO;
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step->stateful = 0;
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return result;
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}
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@ -115,194 +136,113 @@ gconv_end (struct gconv_step *data)
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}
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int
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gconv (struct gconv_step *step, struct gconv_step_data *data,
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const char *inbuf, size_t *inbufsize, size_t *written, int do_flush)
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{
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struct gconv_step *next_step = step + 1;
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struct gconv_step_data *next_data = data + 1;
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gconv_fct fct = next_step->fct;
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size_t do_write;
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int result;
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/* First define the conversion function from ASCII to UCS4. */
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#define MIN_NEEDED_INPUT MIN_NEEDED_FROM
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#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
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#define LOOPFCT FROM_LOOP
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#define BODY \
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{ \
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uint32_t ch; \
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int failure = GCONV_OK; \
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\
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switch (*inptr) \
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{ \
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case '\x23': \
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if (var == GB) \
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ch = 0xa3; \
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else \
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ch = 0x23; \
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break; \
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case '\x7e': \
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if (var == GB) \
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ch = 0x203e; \
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else \
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ch = 0x7e; \
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break; \
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default: \
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ch = *inptr; \
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break; \
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case '\x80' ... '\xff': \
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/* Illegal character. */ \
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failure = GCONV_ILLEGAL_INPUT; \
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ch = '\0'; /* OK, gcc, here I initialize the variable. */ \
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break; \
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} \
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\
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/* Hopefully gcc can recognize that the following `if' is only true \
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when we reach the default case in the `switch' statement. */ \
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if (failure == GCONV_ILLEGAL_INPUT) \
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{ \
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/* Exit the loop with an error. */ \
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result = failure; \
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break; \
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} \
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*((uint32_t *) outptr)++ = ch; \
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++inptr; \
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}
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#define EXTRA_LOOP_DECLS , enum variant var
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#include <iconv/loop.c>
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/* If the function is called with no input this means we have to reset
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to the initial state. The possibly partly converted input is
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dropped. */
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if (do_flush)
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{
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do_write = 0;
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/* Call the steps down the chain if there are any. */
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if (data->is_last)
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result = GCONV_OK;
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else
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{
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struct gconv_step *next_step = step + 1;
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struct gconv_step_data *next_data = data + 1;
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/* Next, define the other direction. */
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#define MIN_NEEDED_INPUT MIN_NEEDED_TO
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#define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM
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#define LOOPFCT TO_LOOP
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#define BODY \
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{ \
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unsigned char ch; \
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int failure = GCONV_OK; \
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\
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do \
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{ \
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switch (*((uint32_t *) inptr)) \
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{ \
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case 0x23: \
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if (var == GB) \
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break; \
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ch = 0x23; \
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continue; \
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case 0x7e: \
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if (var == GB) \
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break; \
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ch = 0x7e; \
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continue; \
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case 0xa3: \
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if (var != GB) \
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break; \
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ch = 0x23; \
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continue; \
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case 0x203e: \
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if (var != GB) \
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break; \
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ch = 0x7e; \
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continue; \
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default: \
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if (*((uint32_t *) inptr) > 0x7f) \
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break; \
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ch = (unsigned char) *((uint32_t *) inptr); \
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continue; \
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} \
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/* When we come to this place we saw an illegal character. */ \
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failure = GCONV_ILLEGAL_INPUT; \
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ch = '\0'; /* OK, gcc, here I initialize the variable. */ \
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} \
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while (0); \
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\
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/* Hopefully gcc can recognize that the following `if' is only true \
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when we fall through the `switch' statement. */ \
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if (failure == GCONV_ILLEGAL_INPUT) \
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{ \
|
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/* Exit the loop with an error. */ \
|
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result = failure; \
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break; \
|
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} \
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*outptr++ = ch; \
|
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inptr += 4; \
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}
|
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#define EXTRA_LOOP_DECLS , enum variant var
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#include <iconv/loop.c>
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result = (*fct) (next_step, next_data, NULL, 0, written, 1);
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|
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/* Clear output buffer. */
|
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data->outbufavail = 0;
|
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}
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}
|
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else
|
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{
|
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enum direction dir = ((struct iso646_data *) step->data)->dir;
|
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enum variant var = ((struct iso646_data *) step->data)->var;
|
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|
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do_write = 0;
|
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|
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do
|
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{
|
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result = GCONV_OK;
|
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|
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if (dir == from_iso646)
|
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{
|
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size_t inchars = *inbufsize;
|
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size_t outwchars = data->outbufavail;
|
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char *outbuf = data->outbuf;
|
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size_t cnt = 0;
|
||||
|
||||
while (cnt < inchars
|
||||
&& (outwchars + sizeof (wchar_t) <= data->outbufsize))
|
||||
{
|
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switch ((unsigned char) inbuf[cnt])
|
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{
|
||||
case '\x23':
|
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if (var == GB)
|
||||
*((wchar_t *) (outbuf + outwchars)) = 0xa3;
|
||||
else
|
||||
*((wchar_t *) (outbuf + outwchars)) = 0x23;
|
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break;
|
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case '\x75':
|
||||
if (var == GB)
|
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*((wchar_t *) (outbuf + outwchars)) = 0x203e;
|
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else
|
||||
*((wchar_t *) (outbuf + outwchars)) = 0x75;
|
||||
break;
|
||||
default:
|
||||
*((wchar_t *) (outbuf + outwchars)) =
|
||||
(unsigned char) inbuf[cnt];
|
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case '\x80' ... '\xff':
|
||||
/* Illegal character. */
|
||||
result = GCONV_ILLEGAL_INPUT;
|
||||
goto out_from;
|
||||
}
|
||||
++do_write;
|
||||
outwchars += sizeof (wchar_t);
|
||||
++cnt;
|
||||
}
|
||||
out_from:
|
||||
*inbufsize -= cnt;
|
||||
inbuf += cnt;
|
||||
data->outbufavail = outwchars;
|
||||
}
|
||||
else
|
||||
{
|
||||
size_t inwchars = *inbufsize;
|
||||
size_t outchars = data->outbufavail;
|
||||
unsigned char *outbuf = data->outbuf;
|
||||
size_t cnt = 0;
|
||||
|
||||
while (inwchars >= cnt + sizeof (wchar_t)
|
||||
&& outchars < data->outbufsize)
|
||||
{
|
||||
switch (*((wchar_t *) (inbuf + cnt)))
|
||||
{
|
||||
case 0x23:
|
||||
if (var == GB)
|
||||
goto out_to;
|
||||
outbuf[outchars] = 0x23;
|
||||
break;
|
||||
case 0x75:
|
||||
if (var == GB)
|
||||
goto out_to;
|
||||
outbuf[outchars] = 0x75;
|
||||
break;
|
||||
case 0xa3:
|
||||
if (var != GB)
|
||||
goto out_to;
|
||||
outbuf[outchars] = 0x23;
|
||||
break;
|
||||
case 0x203e:
|
||||
if (var != GB)
|
||||
goto out_to;
|
||||
outbuf[outchars] = 0x75;
|
||||
break;
|
||||
default:
|
||||
if (*((wchar_t *) (inbuf + cnt)) > 0x7f)
|
||||
goto out_to;
|
||||
outbuf[outchars] =
|
||||
(unsigned char) *((wchar_t *) (inbuf + cnt));
|
||||
break;
|
||||
}
|
||||
|
||||
++do_write;
|
||||
++outchars;
|
||||
cnt += sizeof (wchar_t);
|
||||
}
|
||||
out_to:
|
||||
*inbufsize -= cnt;
|
||||
inbuf += cnt;
|
||||
data->outbufavail = outchars;
|
||||
|
||||
if (outchars < data->outbufsize)
|
||||
{
|
||||
/* If there is still room in the output buffer something
|
||||
is wrong with the input. */
|
||||
if (inwchars >= cnt + sizeof (wchar_t))
|
||||
{
|
||||
/* An error occurred. */
|
||||
result = GCONV_ILLEGAL_INPUT;
|
||||
break;
|
||||
}
|
||||
if (inwchars != cnt)
|
||||
{
|
||||
/* There are some unprocessed bytes at the end of the
|
||||
input buffer. */
|
||||
result = GCONV_INCOMPLETE_INPUT;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (result != GCONV_OK)
|
||||
break;
|
||||
|
||||
if (data->is_last)
|
||||
{
|
||||
/* This is the last step. */
|
||||
result = (*inbufsize > (dir == from_iso646
|
||||
? 0 : sizeof (wchar_t) - 1)
|
||||
? GCONV_FULL_OUTPUT : GCONV_EMPTY_INPUT);
|
||||
break;
|
||||
}
|
||||
|
||||
/* Status so far. */
|
||||
result = GCONV_EMPTY_INPUT;
|
||||
|
||||
if (data->outbufavail > 0)
|
||||
{
|
||||
/* Call the functions below in the chain. */
|
||||
size_t newavail = data->outbufavail;
|
||||
|
||||
result = (*fct) (next_step, next_data, data->outbuf, &newavail,
|
||||
written, 0);
|
||||
|
||||
/* Correct the output buffer. */
|
||||
if (newavail != data->outbufavail && newavail > 0)
|
||||
memmove (data->outbuf,
|
||||
&data->outbuf[data->outbufavail - newavail],
|
||||
newavail);
|
||||
data->outbufavail = newavail;
|
||||
}
|
||||
}
|
||||
while (*inbufsize > 0 && result == GCONV_EMPTY_INPUT);
|
||||
}
|
||||
|
||||
if (written != NULL && data->is_last)
|
||||
*written += do_write;
|
||||
|
||||
return result;
|
||||
}
|
||||
/* Now define the toplevel functions. */
|
||||
#include <iconv/skeleton.c>
|
||||
|
||||
6
iconvdata/testdata/ANSI_X3.4-1968
vendored
Normal file
6
iconvdata/testdata/ANSI_X3.4-1968
vendored
Normal file
@ -0,0 +1,6 @@
|
||||
! " # $ % & ' ( ) * + , - . /
|
||||
0 1 2 3 4 5 6 7 8 9 : ; < = > ?
|
||||
@ A B C D E F G H I J K L M N O
|
||||
P Q R S T U V W X Y Z [ \ ] ^ _
|
||||
` a b c d e f g h i j k l m n o
|
||||
p q r s t u v w x y z { | } ~
|
||||
6
iconvdata/testdata/BS_4730
vendored
Normal file
6
iconvdata/testdata/BS_4730
vendored
Normal file
@ -0,0 +1,6 @@
|
||||
! " # $ % & ' ( ) * + , - . /
|
||||
0 1 2 3 4 5 6 7 8 9 : ; < = > ?
|
||||
@ A B C D E F G H I J K L M N O
|
||||
P Q R S T U V W X Y Z [ \ ] ^ _
|
||||
` a b c d e f g h i j k l m n o
|
||||
p q r s t u v w x y z { | } ~
|
||||
6
iconvdata/testdata/BS_4730..UTF8
vendored
Normal file
6
iconvdata/testdata/BS_4730..UTF8
vendored
Normal file
@ -0,0 +1,6 @@
|
||||
! " £ $ % & ' ( ) * + , - . /
|
||||
0 1 2 3 4 5 6 7 8 9 : ; < = > ?
|
||||
@ A B C D E F G H I J K L M N O
|
||||
P Q R S T U V W X Y Z [ \ ] ^ _
|
||||
` a b c d e f g h i j k l m n o
|
||||
p q r s t u v w x y z { | } ‾
|
||||
Loading…
Reference in New Issue
Block a user