зеркало из https://github.com/github/ruby.git
136 строки
3.0 KiB
Plaintext
136 строки
3.0 KiB
Plaintext
#include "transcode_data.h"
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<%
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map_normalize = {}
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map_normalize["{00-ff}"] = :func_so
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transcode_generate_node(ActionMap.parse(map_normalize), "universal_newline")
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map_crlf = {}
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map_crlf["{00-09,0b-ff}"] = :nomap
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map_crlf["0a"] = "0d0a"
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transcode_generate_node(ActionMap.parse(map_crlf), "crlf_newline")
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map_cr = {}
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map_cr["{00-09,0b-ff}"] = :nomap
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map_cr["0a"] = "0d"
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transcode_generate_node(ActionMap.parse(map_cr), "cr_newline")
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%>
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<%= transcode_generated_code %>
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#define STATE (sp[0])
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#define NORMAL 0
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#define JUST_AFTER_CR 1
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/* no way to access this information, yet. */
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#define NEWLINES_MET (sp[1])
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#define MET_LF 0x01
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#define MET_CRLF 0x02
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#define MET_CR 0x04
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static int
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universal_newline_init(void *statep)
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{
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unsigned char *sp = statep;
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STATE = NORMAL;
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NEWLINES_MET = 0;
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return 0;
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}
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static ssize_t
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fun_so_universal_newline(void *statep, const unsigned char *s, size_t l, unsigned char *o, size_t osize)
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{
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unsigned char *sp = statep;
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int len;
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if (s[0] == '\n') {
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if (STATE == NORMAL) {
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NEWLINES_MET |= MET_LF;
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}
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else { /* JUST_AFTER_CR */
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NEWLINES_MET |= MET_CRLF;
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}
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o[0] = '\n';
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len = 1;
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STATE = NORMAL;
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}
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else {
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len = 0;
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if (STATE == JUST_AFTER_CR) {
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o[0] = '\n';
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len = 1;
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NEWLINES_MET |= MET_CR;
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}
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if (s[0] == '\r') {
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STATE = JUST_AFTER_CR;
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}
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else {
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o[len++] = s[0];
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STATE = NORMAL;
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}
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}
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return len;
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}
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static ssize_t
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universal_newline_finish(void *statep, unsigned char *o, size_t osize)
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{
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unsigned char *sp = statep;
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int len = 0;
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if (STATE == JUST_AFTER_CR) {
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o[0] = '\n';
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len = 1;
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NEWLINES_MET |= MET_CR;
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}
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STATE = NORMAL;
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return len;
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}
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static const rb_transcoder
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rb_universal_newline = {
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"", "universal_newline", universal_newline,
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TRANSCODE_TABLE_INFO,
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1, /* input_unit_length */
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1, /* max_input */
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2, /* max_output */
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asciicompat_converter, /* asciicompat_type */
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2, universal_newline_init, universal_newline_init, /* state_size, state_init, state_fini */
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0, 0, 0, fun_so_universal_newline,
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universal_newline_finish
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};
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static const rb_transcoder
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rb_crlf_newline = {
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"", "crlf_newline", crlf_newline,
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TRANSCODE_TABLE_INFO,
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1, /* input_unit_length */
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1, /* max_input */
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2, /* max_output */
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asciicompat_converter, /* asciicompat_type */
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0, 0, 0, /* state_size, state_init, state_fini */
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0, 0, 0, 0
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};
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static const rb_transcoder
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rb_cr_newline = {
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"", "cr_newline", cr_newline,
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TRANSCODE_TABLE_INFO,
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1, /* input_unit_length */
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1, /* max_input */
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1, /* max_output */
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asciicompat_converter, /* asciicompat_type */
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0, 0, 0, /* state_size, state_init, state_fini */
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0, 0, 0, 0
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};
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void
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Init_newline(void)
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{
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rb_register_transcoder(&rb_universal_newline);
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rb_register_transcoder(&rb_crlf_newline);
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rb_register_transcoder(&rb_cr_newline);
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}
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