From 4639be680d8bf3a70561eb603e3f2dfe61b18689 Mon Sep 17 00:00:00 2001
From: root <root@www.cacert.org>
Date: Wed, 28 Feb 2007 17:21:36 +0000
Subject: [PATCH] Added cv.c sourcecode

---
 locale/cv.c | 102 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 102 insertions(+)
 create mode 100644 locale/cv.c

diff --git a/locale/cv.c b/locale/cv.c
new file mode 100644
index 0000000..4e190d1
--- /dev/null
+++ b/locale/cv.c
@@ -0,0 +1,102 @@
+#include <stdio.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+typedef unsigned char uchar;
+typedef struct{char * nm; int v;} vp;
+vp vpl[] = {
+  {"nbsp", 160}, {"lt",0x3c}, {"amp", 38},
+  {"eacute", 233}, {"egrave", 232}, {"ouml", 246},
+  {"alpha", 0x3b1}, {"beta", 0x3b2}, {"gamma", 0x3b3},
+  {"delta", 0x3b4}, {"Delta", 0x394},
+  {"sigma", 0x3c3}, {"Sigma", 0x3a3},
+  {"epsilon", 0x3b5}, {"zeta", 0x3b6},
+  {"theta", 0x3b8}, {"mu", 0x3bc},
+  {"phi", 0x3c6},
+  {"omega", 0x3c9},
+  {"lambda", 0x3bb}, {"rho", 0x3c1},
+  {"pi", 0x3c0}, {"Pi", 0x3a0},
+  {"ndash", 0x2013}, {"mdash", 0x2014},
+  {"and", 8743}, {"rarr", 8594}, {"forall", 0x2200},
+  {"sum", 8721}};
+int cc = 0; // count of conversions.
+static void Utf(int m, uint a){
+    if (a & m) {Utf(m>>1, a>>6); putchar(128 | a & 63);}
+    else putchar((m<<1)&255 | a);}
+static void utf8(uint a){
+  if(a == '<') printf("%s", "&lt;");
+  else if(a == '&') printf("%s", "&amp;");
+  else if(a & -128) {++cc;
+  Utf(-32, a>>6); putchar(128 | a & 63);} else putchar(a);}
+char * em[] = {"", "tag", "quoted string", "utf", "character ref"};
+int lc = 1, cil = 0, tcc=0;
+char gc(int x){char c = getchar();
+  if(c == EOF && feof(stdin)) {
+     if(x) fprintf(stderr, "file ended in %s\n", em[x]);
+     fprintf(stderr, "Converted %d characters\n", cc);
+     exit(0);}
+  if(c == 10 || c == 13) {tcc += cil; cil = 0; ++lc;}
+  ++cil; return c;}
+void loc(){fprintf(stderr, "Ending at byte %d of line %d,"
+    "(or 0x%x in file):\n", cil, lc, tcc+cil);}
+char gx(){char c = gc(3); if ((c&0xc0) != 0x80)
+   {loc(); fprintf(stderr, "Bad utf8 extension byte: %02X\n", c);}
+   return c;}
+int main(int argc, char * * args){
+  int bk = argc == 2;
+  while(1){
+  int vx(int x){if((x & 0xffffffe0) == 0x80){
+     if(x == 150) return 8211;
+     if(x == 151) return 8212;
+     loc(); fprintf(stderr, "Invalid character: 0x%x=%d\n", x, x);}
+     return x;}
+  uchar c = gc(0);
+  if(c == '<'){putchar(c); while(1){char c = gc(1);
+     if(c == '"'){putchar(c); while(1){char c = gc(2);
+        if(c == '"'){putchar(c); break;}
+        else putchar(c);}}
+     else if(c == '>'){putchar(c); break;}
+     else putchar(c);}}
+  else if(bk && c > 127){int v=0, sc=0, C=c;  
+     while(C&0x40){C <<=1; v = (v<<6) | gx() & 0x3f; ++sc;}
+     {int uc = vx(v | (0x3f>>sc & (int)c) << 6*sc);
+       {int k = sizeof(vpl)/sizeof(vp);
+       while(k--) if(uc == vpl[k].v)
+         {printf("&%s;", vpl[k].nm); goto end;}}
+       printf("&#x%x;", uc);}
+       end: ++cc;}
+  else if(!bk && c == '&') {char c = gc(4);
+     int gs(char c, int r){
+         int vd(char c){if('0' <= c && c <= '9') return c - '0';
+            {char lc = tolower(c);
+            if(r == 16 && 'a' <= lc && lc <= 'f') return lc - 'a' + 10;
+            loc();
+            fprintf(stderr, "Invalid digit folowing \"&#\" construct.");
+            exit(0);
+            return 0;}}
+         int k = vd(c);
+         while(1){char c = gc(4); if(c == ';') return k;
+            k = r*k + vd(c);}}
+     if(c == '#') {char c = gc(4);
+        utf8(vx(c == 'x' || c == 'X' ? gs('0', 16) : gs(c, 10)));}
+     else {int k = sizeof(vpl)/sizeof(vp);
+        char st[10]; st[0] = c;
+           {int n; for(n=1; n<10; ++n) {char c = gc(4);
+             if(c == ';') goto e1;
+             if(!isalpha(c)) break;
+             st[n] = c;}
+          loc(); fprintf(stderr, "%s reference\n",
+            n>10?"Verbose":"Invalid");
+          continue;
+          e1: st[n] = 0;
+  //      loc(); fprintf(stderr, "string is <%s>.\n", st);
+          while(k--) if(!strcmp(st, vpl[k].nm)) {
+             utf8(vpl[k].v); break;}
+     if(k<0) {loc();
+        fprintf(stderr, "Unrecognized reference: &%s;\n", st);}}}}
+  else if(c > 127) {loc(); fprintf(stderr, "Non ASCII char.\n");}
+  else putchar(c);
+}
+return 0;
+}
+