diff options
Diffstat (limited to 'sys/libunicode/vendor/common.c')
| -rw-r--r-- | sys/libunicode/vendor/common.c | 220 |
1 files changed, 0 insertions, 220 deletions
diff --git a/sys/libunicode/vendor/common.c b/sys/libunicode/vendor/common.c deleted file mode 100644 index 6b5d1b3..0000000 --- a/sys/libunicode/vendor/common.c +++ /dev/null @@ -1,220 +0,0 @@ -#include "common.h" - -// ----------------------------------------------------------------------- -// input functions - -int -parse(io·Stream *io, int nfield, char **field, int len, char *line) -{ - int n; - if((n=io·readln(io, len, line)) <= 0) - return ParseEOF; - - if(n == len) - panicf("line too long"); - - if(line[n-1] != '\n') - panicf("invalid line: expected '\n', found '%c'", line[n]); - - line[n-1] = 0; - - if(line[0] == '#' || line[0] == 0) - return ParseSkip; - - /* tokenize line into fields */ - n = 0; - field[n] = line; - while(*line){ - if(*line == ';'){ - *line = 0; - field[++n] = line+1; - } - line++; - } - - if(n != nfield-1) - panicf("expected %d number of fields, got %d: %s", nfield, n, line); - - return ParseOK; -} - -int -codepoint(char *s) -{ - int c, b; - - c = 0; - while((b=*s++)){ - c <<= 4; - if(b >= '0' && b <= '9') - c += b - '0'; - else if(b >= 'A' && b <= 'F') - c += b - 'A' + 10; - else - panicf("bad codepoint char '%c'", b); - } - - return c; -} - -void -codepointrange(io·Stream *utf8, char *field[NumFields], int *start, int *stop) -{ - int e, c; - char *other[NumFields], line[1024]; - - // XXX: the stop variable passes in the previous stopping character - e = *stop; - c = codepoint(field[Fcode]); - - if(c >= NumRunes) - panicf("unexpected large codepoint %x", c); - if(c <= e) - panicf("bad code sequence: %x then %x", e, c); - e = c; - - if(strstr(field[Fname], ", First>") != nil){ - if(!parse(utf8, arrlen(other), other, arrlen(line), line)) - panicf("range start at end of file"); - if(strstr(other[Fname], ", Last>") == nil) - panicf("range start not followed by range end"); - - e = codepoint(other[Fcode]); - - if(e <= c) - panicf("bad code sequence: %x then %x", c, e); - if(strcmp(field[Fcategory], other[Fcategory]) != 0) - panicf("range with mismatched category"); - } - - *start = c; - *stop = e; -} - -// ----------------------------------------------------------------------- -// output functions - -void -putsearch(void) -{ - puts( - "#include <u.h>\n" - "#include <libunicode.h>\n" - "\n" - "static\n" - "rune*\n" - "rangesearch(rune c, rune *t, int n, int ne)\n" - "{\n" - " rune *p;\n" - " int m;\n" - " while(n > 1) {\n" - " m = n >> 1;\n" - " p = t + m*ne;\n" - " if(c >= p[0]){\n" - " t = p;\n" - " n = n-m;\n" - " }else\n" - " n = m;\n" - " }\n" - " if(n && c >= t[0])\n" - " return t;\n" - " return 0;\n" - "}\n" - ); - -} - -int -putrange(char *ident, char *prop, int force) -{ - int l, r, start; - - start = 0; - for(l = 0; l < NumRunes;) { - if(!prop[l]){ - l++; - continue; - } - - for(r = l+1; r < NumRunes; r++){ - if(!prop[r]) - break; - prop[r] = 0; - } - - if(force || r > l + 1){ - if(!start){ - printf("static rune %s[] = {\n", ident); - start = 1; - } - prop[l] = 0; - printf("\t0x%.4x, 0x%.4x,\n", l, r-1); - } - - l = r; - } - - if(start) - printf("};\n\n"); - - return start; -} - -int -putpair(char *ident, char *prop) -{ - int l, r, start; - - start = 0; - for(l=0; l+2 < NumRunes; ){ - if(!prop[l]){ - l++; - continue; - } - - for(r = l + 2; r < NumRunes; r += 2){ - if(!prop[r]) - break; - prop[r] = 0; - } - - if(r != l + 2){ - if(!start){ - printf("static rune %s[] = {\n", ident); - start = 1; - } - prop[l] = 0; - printf("\t0x%.4x, 0x%.4x,\n", l, r - 2); - } - - l = r; - } - - if(start) - printf("};\n\n"); - return start; -} - -int -putsingle(char *ident, char *prop) -{ - int i, start; - - start = 0; - for(i = 0; i < NumRunes; i++) { - if(!prop[i]) - continue; - - if(!start){ - printf("static rune %s[] = {\n", ident); - start = 1; - } - prop[i] = 0; - printf("\t0x%.4x,\n", i); - } - - if(start) - printf("};\n\n"); - - return start; -} |