tforgot - plan9port - [fork] Plan 9 from user space
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---
(DIR) commit 8d7133308db580d2356d5d1dd30f0b9a1f0a7417
(DIR) parent 536f9b83c0bed9986800d806c74ae4d225628fe3
(HTM) Author: rsc <devnull@localhost>
Date: Sun, 21 May 2006 20:42:33 +0000
forgot
Diffstat:
A src/cmd/tcs/tune.c | 309 +++++++++++++++++++++++++++++++
1 file changed, 309 insertions(+), 0 deletions(-)
---
(DIR) diff --git a/src/cmd/tcs/tune.c b/src/cmd/tcs/tune.c
t@@ -0,0 +1,309 @@
+#include <u.h>
+#include <libc.h>
+#include <bio.h>
+#include "hdr.h"
+#include "conv.h"
+
+typedef struct Tmap Tmap;
+struct Tmap
+{
+ Rune u;
+ Rune t;
+};
+
+static Tmap t1[] =
+{
+ {0x0b85/*அ*/, 0xe201/**/},
+ {0x0b86/*ஆ*/, 0xe202/**/},
+ {0x0b87/*இ*/, 0xe203/**/},
+ {0x0b88/*ஈ*/, 0xe204/**/},
+ {0x0b89/*உ*/, 0xe205/**/},
+ {0x0b8a/*ஊ*/, 0xe206/**/},
+ {0x0b8e/*எ*/, 0xe207/**/},
+ {0x0b8f/*ஏ*/, 0xe208/**/},
+ {0x0b90/*ஐ*/, 0xe209/**/},
+ {0x0b92/*ஒ*/, 0xe20a/**/},
+ {0x0b93/*ஓ*/, 0xe20b/**/},
+ {0x0b94/*ஔ*/, 0xe20c/**/},
+ {0x0b83/*ஃ*/, 0xe20d/**/}
+};
+
+static Rune t2[] =
+{
+ 0x0bcd/*்*/,
+ 0x0bcd/*்*/, // filler
+ 0x0bbe/*ா*/,
+ 0x0bbf/*ி*/,
+ 0x0bc0/*ீ*/,
+ 0x0bc1/*ு*/,
+ 0x0bc2/*ூ*/,
+ 0x0bc6/*ெ*/,
+ 0x0bc7/*ே*/,
+ 0x0bc8/*ை*/,
+ 0x0bca/*ொ*/,
+ 0x0bcb/*ோ*/,
+ 0x0bcc/*ௌ*/
+};
+
+static Tmap t3[] =
+{
+ {0x0b95/*க*/, 0xe211/**/},
+ {0x0b99/*ங*/, 0xe221/**/},
+ {0x0b9a/*ச*/, 0xe231/**/},
+ {0x0b9c/*ஜ*/, 0xe331/**/},
+ {0x0b9e/*ஞ*/, 0xe241/**/},
+ {0x0b9f/*ட*/, 0xe251/**/},
+ {0x0ba3/*ண*/, 0xe261/**/},
+ {0x0ba4/*த*/, 0xe271/**/},
+ {0x0ba8/*ந*/, 0xe281/**/},
+ {0x0ba9/*ன*/, 0xe321/**/},
+ {0x0baa/*ப*/, 0xe291/**/},
+ {0x0bae/*ம*/, 0xe2a1/**/},
+ {0x0baf/*ய*/, 0xe2b1/**/},
+ {0x0bb0/*ர*/, 0xe2c1/**/},
+ {0x0bb1/*ற*/, 0xe311/**/},
+ {0x0bb2/*ல*/, 0xe2d1/**/},
+ {0x0bb3/*ள*/, 0xe301/**/},
+ {0x0bb4/*ழ*/, 0xe2f1/**/},
+ {0x0bb5/*வ*/, 0xe2e1/**/},
+ {0x0bb6/*ஶ*/, 0xe341/**/},
+ {0x0bb7/*ஷ*/, 0xe351/**/},
+ {0x0bb8/*ஸ*/, 0xe361/**/},
+ {0x0bb9/*ஹ*/, 0xe371/**/}
+};
+
+static Rune
+findbytune(Tmap *tab, int size, Rune t)
+{
+ int i;
+
+ for(i = 0; i < size; i++)
+ if(tab[i].t == t)
+ return tab[i].u;
+ return Runeerror;
+}
+
+static Rune
+findbyuni(Tmap *tab, int size, Rune u)
+{
+ int i;
+
+ for(i = 0; i < size; i++)
+ if(tab[i].u == u)
+ return tab[i].t;
+ return Runeerror;
+}
+
+static int
+findindex(Rune *rstr, int size, Rune r)
+{
+ int i;
+
+ for(i = 0; i < size; i++)
+ if(rstr[i] == r)
+ return i;
+ return -1;
+}
+
+void
+tune_in(int fd, long *x, struct convert *out)
+{
+ Biobuf b;
+ Rune rbuf[N];
+ Rune *r, *er, tr;
+ int c, i;
+
+ USED(x);
+ r = rbuf;
+ er = rbuf+N-3;
+ Binit(&b, fd, OREAD);
+ while((c = Bgetrune(&b)) != Beof){
+ ninput += b.runesize;
+ if(r >= er){
+ OUT(out, rbuf, r-rbuf);
+ r = rbuf;
+ }
+ if(c>=0xe210/**/ && c <= 0xe38c/**/ && (i = c%16) < nelem(t2)){
+ if(c >= 0xe380/**/){
+ *r++ = 0x0b95/*க*/;
+ *r++ = 0x0bcd/*்*/;
+ *r++ = 0x0bb7/*ஷ*/;
+ }else
+ *r++ = findbytune(t3, nelem(t3), c-i+1);
+ if(i != 1)
+ *r++ = t2[i];
+ }else if((tr = findbytune(t1, nelem(t1), c)) != Runeerror)
+ *r++ = tr;
+ else switch(c){
+ case 0xe3d0/**/:
+ *r++ = 0x0ba3/*ண*/; *r++ = 0x0bbe/*ா*/;
+ break;
+ case 0xe3d1/**/:
+ *r++ = 0x0bb1/*ற*/; *r++ = 0x0bbe/*ா*/;
+ break;
+ case 0xe3d2/**/:
+ *r++ = 0x0ba9/*ன*/; *r++ = 0x0bbe/*ா*/;
+ break;
+ case 0xe3d4/**/:
+ *r++ = 0x0ba3/*ண*/; *r++ = 0x0bc8/*ை*/;
+ break;
+ case 0xe3d5/**/:
+ *r++ = 0x0bb2/*ல*/; *r++ = 0x0bc8/*ை*/;
+ break;
+ case 0xe3d6/**/:
+ *r++ = 0x0bb3/*ள*/; *r++ = 0x0bc8/*ை*/;
+ break;
+ case 0xe3d7/**/:
+ *r++ = 0x0ba9/*ன*/; *r++ = 0x0bc8/*ை*/;
+ break;
+ case 0xe38d/**/:
+ *r++ = 0x0bb6/*ஶ*/; *r++ = 0x0bcd/*்*/; *r++ = 0x0bb0/*ர*/; *r++ = 0x0bc0/*ீ*/;
+ break;
+ default:
+ if(c >= 0xe200 && c <= 0xe3ff){
+ if(squawk)
+ EPR "%s: rune 0x%x not in output cs\n", argv0, c);
+ nerrors++;
+ if(clean)
+ break;
+ c = BADMAP;
+ }
+ *r++ = c;
+ break;
+ }
+ }
+ if(r > rbuf)
+ OUT(out, rbuf, r-rbuf);
+ OUT(out, rbuf, 0);
+}
+
+void
+tune_out(Rune *r, int n, long *x)
+{
+ static int state = 0;
+ static Rune lastr;
+ Rune *er, tr, rr;
+ char *p;
+ int i;
+
+ USED(x);
+ nrunes += n;
+ er = r+n;
+ for(p = obuf; r < er; r++){
+ switch(state){
+ case 0:
+ case0:
+ if((tr = findbyuni(t3, nelem(t3), *r)) != Runeerror){
+ lastr = tr;
+ state = 1;
+ }else if(*r == 0x0b92/*ஒ*/){
+ lastr = 0xe20a/**/;
+ state = 3;
+ }else if((tr = findbyuni(t1, nelem(t1), *r)) != Runeerror)
+ p += runetochar(p, &tr);
+ else
+ p += runetochar(p, r);
+ break;
+ case 1:
+ case1:
+ if((i = findindex(t2, nelem(t2), *r)) != -1){
+ if(lastr && lastr != Runeerror)
+ lastr += i-1;
+ if(*r ==0x0bc6/*ெ*/)
+ state = 5;
+ else if(*r ==0x0bc7/*ே*/)
+ state = 4;
+ else if(lastr == 0xe210/**/)
+ state = 2;
+ else if(lastr == 0xe340/**/)
+ state = 6;
+ else{
+ if(lastr)
+ p += runetochar(p, &lastr);
+ state = 0;
+ }
+ }else if(lastr && lastr != Runeerror && (*r == 0x00b2/*²*/ || *r == 0x00b3/*³*/ || *r == 0x2074/*⁴*/)){
+ if(squawk)
+ EPR "%s: character <U+%.4X, U+%.4X> not in output cs\n", argv0, lastr, *r);
+ lastr = clean ? 0 : Runeerror;
+ nerrors++;
+ }else{
+ if(lastr)
+ p += runetochar(p, &lastr);
+ state = 0;
+ goto case0;
+ }
+ break;
+ case 2:
+ if(*r == 0x0bb7/*ஷ*/){
+ lastr = 0xe381/**/;
+ state = 1;
+ break;
+ }
+ p += runetochar(p, &lastr);
+ state = 0;
+ goto case0;
+ case 3:
+ state = 0;
+ if(*r == 0x0bd7/*ௗ*/){
+ rr = 0xe20c/**/;
+ p += runetochar(p, &rr);
+ break;
+ }
+ p += runetochar(p, &lastr);
+ goto case0;
+ case 4:
+ state = 0;
+ if(*r == 0x0bbe/*ா*/){
+ if(lastr){
+ if(lastr != Runeerror)
+ lastr += 3;
+ p += runetochar(p, &lastr);
+ }
+ break;
+ }
+ if(lastr)
+ p += runetochar(p, &lastr);
+ goto case0;
+ case 5:
+ state = 0;
+ if(*r == 0x0bbe/*ா*/ || *r == 0x0bd7/*ௗ*/){
+ if(lastr){
+ if(lastr != Runeerror)
+ lastr += *r == 0x0bbe/*ா*/ ? 3 : 5;
+ p += runetochar(p, &lastr);
+ }
+ break;
+ }
+ if(lastr)
+ p += runetochar(p, &lastr);
+ goto case0;
+ case 6:
+ if(*r == 0x0bb0/*ர*/){
+ state = 7;
+ break;
+ }
+ p += runetochar(p, &lastr);
+ state = 0;
+ goto case0;
+ case 7:
+ if(*r == 0x0bc0/*ீ*/){
+ rr = 0xe38d/**/;
+ p += runetochar(p, &rr);
+ state = 0;
+ break;
+ }
+ p += runetochar(p, &lastr);
+ lastr = 0xe2c1/**/;
+ state = 1;
+ goto case1;
+ }
+ }
+ if(n == 0 && state != 0){
+ if(lastr)
+ p += runetochar(p, &lastr);
+ state = 0;
+ }
+ noutput += p-obuf;
+ write(1, obuf, p-obuf);
+}