mirror of
https://github.com/autc04/Retro68.git
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905 lines
22 KiB
D
905 lines
22 KiB
D
/**
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* This code handles decoding UTF strings for foreach loops. There are 6
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* combinations of conversions between char, wchar, and dchar, and 2 of each
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* of those.
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*
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* Copyright: Copyright Digital Mars 2004 - 2010.
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* License: $(WEB www.boost.org/LICENSE_1_0.txt, Boost License 1.0).
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* Authors: Walter Bright
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* Source: $(DRUNTIMESRC src/rt/_aApply.d)
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*/
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module rt.aApply;
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private import rt.util.utf : decode, toUTF8;
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/**********************************************/
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/* 1 argument versions */
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// dg is D, but _aApplycd() is C
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extern (D) alias int delegate(void *) dg_t;
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extern (C) int _aApplycd1(in char[] aa, dg_t dg)
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{
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int result;
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size_t len = aa.length;
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debug(apply) printf("_aApplycd1(), len = %d\n", len);
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for (size_t i = 0; i < len; )
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{
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dchar d = aa[i];
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if (d & 0x80)
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d = decode(aa, i);
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else
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++i;
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result = dg(cast(void *)&d);
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if (result)
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break;
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}
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return result;
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}
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unittest
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{
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debug(apply) printf("_aApplycd1.unittest\n");
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auto s = "hello"c[];
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int i;
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foreach (dchar d; s)
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{
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switch (i)
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{
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case 0: assert(d == 'h'); break;
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case 1: assert(d == 'e'); break;
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case 2: assert(d == 'l'); break;
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case 3: assert(d == 'l'); break;
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case 4: assert(d == 'o'); break;
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default: assert(0);
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}
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i++;
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}
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assert(i == 5);
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s = "a\u1234\U000A0456b";
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i = 0;
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foreach (dchar d; s)
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{
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//printf("i = %d, d = %x\n", i, d);
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switch (i)
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{
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case 0: assert(d == 'a'); break;
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case 1: assert(d == '\u1234'); break;
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case 2: assert(d == '\U000A0456'); break;
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case 3: assert(d == 'b'); break;
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default: assert(0);
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}
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i++;
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}
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assert(i == 4);
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}
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/*****************************/
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extern (C) int _aApplywd1(in wchar[] aa, dg_t dg)
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{
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int result;
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size_t len = aa.length;
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debug(apply) printf("_aApplywd1(), len = %d\n", len);
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for (size_t i = 0; i < len; )
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{
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dchar d = aa[i];
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if (d >= 0xD800)
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d = decode(aa, i);
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else
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++i;
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result = dg(cast(void *)&d);
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if (result)
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break;
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}
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return result;
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}
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unittest
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{
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debug(apply) printf("_aApplywd1.unittest\n");
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auto s = "hello"w[];
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int i;
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foreach (dchar d; s)
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{
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switch (i)
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{
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case 0: assert(d == 'h'); break;
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case 1: assert(d == 'e'); break;
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case 2: assert(d == 'l'); break;
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case 3: assert(d == 'l'); break;
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case 4: assert(d == 'o'); break;
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default: assert(0);
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}
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i++;
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}
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assert(i == 5);
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s = "a\u1234\U000A0456b";
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i = 0;
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foreach (dchar d; s)
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{
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//printf("i = %d, d = %x\n", i, d);
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switch (i)
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{
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case 0: assert(d == 'a'); break;
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case 1: assert(d == '\u1234'); break;
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case 2: assert(d == '\U000A0456'); break;
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case 3: assert(d == 'b'); break;
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default: assert(0);
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}
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i++;
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}
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assert(i == 4);
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}
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/*****************************/
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extern (C) int _aApplycw1(in char[] aa, dg_t dg)
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{
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int result;
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size_t len = aa.length;
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debug(apply) printf("_aApplycw1(), len = %d\n", len);
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for (size_t i = 0; i < len; )
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{
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wchar w = aa[i];
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if (w & 0x80)
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{
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dchar d = decode(aa, i);
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if (d <= 0xFFFF)
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w = cast(wchar) d;
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else
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{
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w = cast(wchar)((((d - 0x10000) >> 10) & 0x3FF) + 0xD800);
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result = dg(cast(void *)&w);
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if (result)
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break;
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w = cast(wchar)(((d - 0x10000) & 0x3FF) + 0xDC00);
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}
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}
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else
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++i;
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result = dg(cast(void *)&w);
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if (result)
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break;
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}
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return result;
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}
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unittest
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{
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debug(apply) printf("_aApplycw1.unittest\n");
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auto s = "hello"c[];
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int i;
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foreach (wchar d; s)
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{
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switch (i)
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{
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case 0: assert(d == 'h'); break;
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case 1: assert(d == 'e'); break;
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case 2: assert(d == 'l'); break;
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case 3: assert(d == 'l'); break;
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case 4: assert(d == 'o'); break;
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default: assert(0);
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}
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i++;
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}
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assert(i == 5);
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s = "a\u1234\U000A0456b";
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i = 0;
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foreach (wchar d; s)
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{
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//printf("i = %d, d = %x\n", i, d);
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switch (i)
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{
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case 0: assert(d == 'a'); break;
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case 1: assert(d == 0x1234); break;
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case 2: assert(d == 0xDA41); break;
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case 3: assert(d == 0xDC56); break;
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case 4: assert(d == 'b'); break;
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default: assert(0);
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}
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i++;
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}
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assert(i == 5);
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}
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/*****************************/
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extern (C) int _aApplywc1(in wchar[] aa, dg_t dg)
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{
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int result;
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size_t len = aa.length;
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debug(apply) printf("_aApplywc1(), len = %d\n", len);
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for (size_t i = 0; i < len; )
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{
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wchar w = aa[i];
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if (w & ~0x7F)
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{
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char[4] buf = void;
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dchar d = decode(aa, i);
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auto b = toUTF8(buf, d);
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foreach (char c2; b)
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{
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result = dg(cast(void *)&c2);
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if (result)
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return result;
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}
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}
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else
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{
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char c = cast(char)w;
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++i;
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result = dg(cast(void *)&c);
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if (result)
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break;
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}
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}
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return result;
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}
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unittest
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{
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debug(apply) printf("_aApplywc1.unittest\n");
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auto s = "hello"w[];
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int i;
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foreach (char d; s)
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{
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switch (i)
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{
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case 0: assert(d == 'h'); break;
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case 1: assert(d == 'e'); break;
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case 2: assert(d == 'l'); break;
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case 3: assert(d == 'l'); break;
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case 4: assert(d == 'o'); break;
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default: assert(0);
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}
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i++;
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}
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assert(i == 5);
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s = "a\u1234\U000A0456b";
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i = 0;
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foreach (char d; s)
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{
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//printf("i = %d, d = %x\n", i, d);
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switch (i)
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{
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case 0: assert(d == 'a'); break;
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case 1: assert(d == 0xE1); break;
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case 2: assert(d == 0x88); break;
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case 3: assert(d == 0xB4); break;
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case 4: assert(d == 0xF2); break;
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case 5: assert(d == 0xA0); break;
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case 6: assert(d == 0x91); break;
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case 7: assert(d == 0x96); break;
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case 8: assert(d == 'b'); break;
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default: assert(0);
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}
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i++;
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}
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assert(i == 9);
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}
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/*****************************/
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extern (C) int _aApplydc1(in dchar[] aa, dg_t dg)
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{
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int result;
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debug(apply) printf("_aApplydc1(), len = %d\n", aa.length);
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foreach (dchar d; aa)
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{
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if (d & ~0x7F)
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{
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char[4] buf = void;
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auto b = toUTF8(buf, d);
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foreach (char c2; b)
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{
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result = dg(cast(void *)&c2);
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if (result)
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return result;
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}
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}
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else
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{
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char c = cast(char)d;
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result = dg(cast(void *)&c);
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if (result)
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break;
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}
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}
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return result;
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}
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unittest
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{
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debug(apply) printf("_aApplyRdc1.unittest\n");
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auto s = "hello"d[];
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int i;
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foreach (char d; s)
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{
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switch (i)
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{
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case 0: assert(d == 'h'); break;
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case 1: assert(d == 'e'); break;
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case 2: assert(d == 'l'); break;
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case 3: assert(d == 'l'); break;
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case 4: assert(d == 'o'); break;
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default: assert(0);
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}
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i++;
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}
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assert(i == 5);
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s = "a\u1234\U000A0456b";
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i = 0;
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foreach (char d; s)
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{
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//printf("i = %d, d = %x\n", i, d);
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switch (i)
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{
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case 0: assert(d == 'a'); break;
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case 1: assert(d == 0xE1); break;
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case 2: assert(d == 0x88); break;
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case 3: assert(d == 0xB4); break;
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case 4: assert(d == 0xF2); break;
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case 5: assert(d == 0xA0); break;
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case 6: assert(d == 0x91); break;
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case 7: assert(d == 0x96); break;
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case 8: assert(d == 'b'); break;
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default: assert(0);
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}
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i++;
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}
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assert(i == 9);
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}
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/*****************************/
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extern (C) int _aApplydw1(in dchar[] aa, dg_t dg)
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{
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int result;
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debug(apply) printf("_aApplydw1(), len = %d\n", aa.length);
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foreach (dchar d; aa)
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{
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wchar w;
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if (d <= 0xFFFF)
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w = cast(wchar) d;
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else
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{
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w = cast(wchar)((((d - 0x10000) >> 10) & 0x3FF) + 0xD800);
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result = dg(cast(void *)&w);
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if (result)
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break;
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w = cast(wchar)(((d - 0x10000) & 0x3FF) + 0xDC00);
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}
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result = dg(cast(void *)&w);
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if (result)
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break;
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}
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return result;
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}
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unittest
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{
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debug(apply) printf("_aApplydw1.unittest\n");
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auto s = "hello"d[];
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int i;
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foreach (wchar d; s)
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{
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switch (i)
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{
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case 0: assert(d == 'h'); break;
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case 1: assert(d == 'e'); break;
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case 2: assert(d == 'l'); break;
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case 3: assert(d == 'l'); break;
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case 4: assert(d == 'o'); break;
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default: assert(0);
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}
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i++;
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}
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assert(i == 5);
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s = "a\u1234\U000A0456b";
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i = 0;
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foreach (wchar d; s)
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{
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//printf("i = %d, d = %x\n", i, d);
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switch (i)
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{
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case 0: assert(d == 'a'); break;
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case 1: assert(d == 0x1234); break;
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case 2: assert(d == 0xDA41); break;
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case 3: assert(d == 0xDC56); break;
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case 4: assert(d == 'b'); break;
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default: assert(0);
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}
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i++;
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}
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assert(i == 5);
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}
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/****************************************************************************/
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/* 2 argument versions */
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// dg is D, but _aApplycd2() is C
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extern (D) alias int delegate(void *, void *) dg2_t;
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extern (C) int _aApplycd2(in char[] aa, dg2_t dg)
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{
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int result;
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size_t len = aa.length;
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debug(apply) printf("_aApplycd2(), len = %d\n", len);
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size_t n;
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for (size_t i = 0; i < len; i += n)
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{
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dchar d = aa[i];
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if (d & 0x80)
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{
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n = i;
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d = decode(aa, n);
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n -= i;
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}
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else
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n = 1;
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result = dg(&i, cast(void *)&d);
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if (result)
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break;
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}
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return result;
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}
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|
unittest
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{
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debug(apply) printf("_aApplycd2.unittest\n");
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auto s = "hello"c[];
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int i;
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foreach (k, dchar d; s)
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{
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//printf("i = %d, k = %d, d = %x\n", i, k, d);
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assert(k == i);
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switch (i)
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{
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case 0: assert(d == 'h'); break;
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case 1: assert(d == 'e'); break;
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case 2: assert(d == 'l'); break;
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case 3: assert(d == 'l'); break;
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case 4: assert(d == 'o'); break;
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default: assert(0);
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}
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i++;
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}
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assert(i == 5);
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s = "a\u1234\U000A0456b";
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i = 0;
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foreach (k, dchar d; s)
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{
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//printf("i = %d, k = %d, d = %x\n", i, k, d);
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switch (i)
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{
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case 0: assert(d == 'a'); assert(k == 0); break;
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case 1: assert(d == '\u1234'); assert(k == 1); break;
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case 2: assert(d == '\U000A0456'); assert(k == 4); break;
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case 3: assert(d == 'b'); assert(k == 8); break;
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default: assert(0);
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}
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i++;
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}
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assert(i == 4);
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}
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/*****************************/
|
|
|
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extern (C) int _aApplywd2(in wchar[] aa, dg2_t dg)
|
|
{
|
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int result;
|
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size_t len = aa.length;
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|
|
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debug(apply) printf("_aApplywd2(), len = %d\n", len);
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size_t n;
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for (size_t i = 0; i < len; i += n)
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{
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dchar d = aa[i];
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if (d & ~0x7F)
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{
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n = i;
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d = decode(aa, n);
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n -= i;
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}
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else
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n = 1;
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result = dg(&i, cast(void *)&d);
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if (result)
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break;
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}
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return result;
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}
|
|
|
|
unittest
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|
{
|
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debug(apply) printf("_aApplywd2.unittest\n");
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|
|
|
auto s = "hello"w[];
|
|
int i;
|
|
|
|
foreach (k, dchar d; s)
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{
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//printf("i = %d, k = %d, d = %x\n", i, k, d);
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assert(k == i);
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switch (i)
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{
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case 0: assert(d == 'h'); break;
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case 1: assert(d == 'e'); break;
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case 2: assert(d == 'l'); break;
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case 3: assert(d == 'l'); break;
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case 4: assert(d == 'o'); break;
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default: assert(0);
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}
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i++;
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}
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assert(i == 5);
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|
|
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s = "a\u1234\U000A0456b";
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i = 0;
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foreach (k, dchar d; s)
|
|
{
|
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//printf("i = %d, k = %d, d = %x\n", i, k, d);
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switch (i)
|
|
{
|
|
case 0: assert(k == 0); assert(d == 'a'); break;
|
|
case 1: assert(k == 1); assert(d == '\u1234'); break;
|
|
case 2: assert(k == 2); assert(d == '\U000A0456'); break;
|
|
case 3: assert(k == 4); assert(d == 'b'); break;
|
|
default: assert(0);
|
|
}
|
|
i++;
|
|
}
|
|
assert(i == 4);
|
|
}
|
|
|
|
/*****************************/
|
|
|
|
extern (C) int _aApplycw2(in char[] aa, dg2_t dg)
|
|
{
|
|
int result;
|
|
size_t len = aa.length;
|
|
|
|
debug(apply) printf("_aApplycw2(), len = %d\n", len);
|
|
size_t n;
|
|
for (size_t i = 0; i < len; i += n)
|
|
{
|
|
wchar w = aa[i];
|
|
if (w & 0x80)
|
|
{
|
|
n = i;
|
|
dchar d = decode(aa, n);
|
|
n -= i;
|
|
if (d <= 0xFFFF)
|
|
w = cast(wchar) d;
|
|
else
|
|
{
|
|
w = cast(wchar) ((((d - 0x10000) >> 10) & 0x3FF) + 0xD800);
|
|
result = dg(&i, cast(void *)&w);
|
|
if (result)
|
|
break;
|
|
w = cast(wchar) (((d - 0x10000) & 0x3FF) + 0xDC00);
|
|
}
|
|
}
|
|
else
|
|
n = 1;
|
|
result = dg(&i, cast(void *)&w);
|
|
if (result)
|
|
break;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
unittest
|
|
{
|
|
debug(apply) printf("_aApplycw2.unittest\n");
|
|
|
|
auto s = "hello"c[];
|
|
int i;
|
|
|
|
foreach (k, wchar d; s)
|
|
{
|
|
//printf("i = %d, k = %d, d = %x\n", i, k, d);
|
|
assert(k == i);
|
|
switch (i)
|
|
{
|
|
case 0: assert(d == 'h'); break;
|
|
case 1: assert(d == 'e'); break;
|
|
case 2: assert(d == 'l'); break;
|
|
case 3: assert(d == 'l'); break;
|
|
case 4: assert(d == 'o'); break;
|
|
default: assert(0);
|
|
}
|
|
i++;
|
|
}
|
|
assert(i == 5);
|
|
|
|
s = "a\u1234\U000A0456b";
|
|
i = 0;
|
|
foreach (k, wchar d; s)
|
|
{
|
|
//printf("i = %d, k = %d, d = %x\n", i, k, d);
|
|
switch (i)
|
|
{
|
|
case 0: assert(k == 0); assert(d == 'a'); break;
|
|
case 1: assert(k == 1); assert(d == 0x1234); break;
|
|
case 2: assert(k == 4); assert(d == 0xDA41); break;
|
|
case 3: assert(k == 4); assert(d == 0xDC56); break;
|
|
case 4: assert(k == 8); assert(d == 'b'); break;
|
|
default: assert(0);
|
|
}
|
|
i++;
|
|
}
|
|
assert(i == 5);
|
|
}
|
|
|
|
/*****************************/
|
|
|
|
extern (C) int _aApplywc2(in wchar[] aa, dg2_t dg)
|
|
{
|
|
int result;
|
|
size_t len = aa.length;
|
|
|
|
debug(apply) printf("_aApplywc2(), len = %d\n", len);
|
|
size_t n;
|
|
for (size_t i = 0; i < len; i += n)
|
|
{
|
|
wchar w = aa[i];
|
|
if (w & ~0x7F)
|
|
{
|
|
char[4] buf = void;
|
|
|
|
n = i;
|
|
dchar d = decode(aa, n);
|
|
n -= i;
|
|
auto b = toUTF8(buf, d);
|
|
foreach (char c2; b)
|
|
{
|
|
result = dg(&i, cast(void *)&c2);
|
|
if (result)
|
|
return result;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
char c = cast(char)w;
|
|
n = 1;
|
|
result = dg(&i, cast(void *)&c);
|
|
if (result)
|
|
break;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
unittest
|
|
{
|
|
debug(apply) printf("_aApplywc2.unittest\n");
|
|
|
|
auto s = "hello"w[];
|
|
int i;
|
|
|
|
foreach (k, char d; s)
|
|
{
|
|
//printf("i = %d, k = %d, d = %x\n", i, k, d);
|
|
assert(k == i);
|
|
switch (i)
|
|
{
|
|
case 0: assert(d == 'h'); break;
|
|
case 1: assert(d == 'e'); break;
|
|
case 2: assert(d == 'l'); break;
|
|
case 3: assert(d == 'l'); break;
|
|
case 4: assert(d == 'o'); break;
|
|
default: assert(0);
|
|
}
|
|
i++;
|
|
}
|
|
assert(i == 5);
|
|
|
|
s = "a\u1234\U000A0456b";
|
|
i = 0;
|
|
foreach (k, char d; s)
|
|
{
|
|
//printf("i = %d, k = %d, d = %x\n", i, k, d);
|
|
switch (i)
|
|
{
|
|
case 0: assert(k == 0); assert(d == 'a'); break;
|
|
case 1: assert(k == 1); assert(d == 0xE1); break;
|
|
case 2: assert(k == 1); assert(d == 0x88); break;
|
|
case 3: assert(k == 1); assert(d == 0xB4); break;
|
|
case 4: assert(k == 2); assert(d == 0xF2); break;
|
|
case 5: assert(k == 2); assert(d == 0xA0); break;
|
|
case 6: assert(k == 2); assert(d == 0x91); break;
|
|
case 7: assert(k == 2); assert(d == 0x96); break;
|
|
case 8: assert(k == 4); assert(d == 'b'); break;
|
|
default: assert(0);
|
|
}
|
|
i++;
|
|
}
|
|
assert(i == 9);
|
|
}
|
|
|
|
/*****************************/
|
|
|
|
extern (C) int _aApplydc2(in dchar[] aa, dg2_t dg)
|
|
{
|
|
int result;
|
|
size_t len = aa.length;
|
|
|
|
debug(apply) printf("_aApplydc2(), len = %d\n", len);
|
|
for (size_t i = 0; i < len; i++)
|
|
{
|
|
dchar d = aa[i];
|
|
if (d & ~0x7F)
|
|
{
|
|
char[4] buf = void;
|
|
|
|
auto b = toUTF8(buf, d);
|
|
foreach (char c2; b)
|
|
{
|
|
result = dg(&i, cast(void *)&c2);
|
|
if (result)
|
|
return result;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
char c = cast(char)d;
|
|
result = dg(&i, cast(void *)&c);
|
|
if (result)
|
|
break;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
unittest
|
|
{
|
|
debug(apply) printf("_aApplydc2.unittest\n");
|
|
|
|
auto s = "hello"d[];
|
|
int i;
|
|
|
|
foreach (k, char d; s)
|
|
{
|
|
//printf("i = %d, k = %d, d = %x\n", i, k, d);
|
|
assert(k == i);
|
|
switch (i)
|
|
{
|
|
case 0: assert(d == 'h'); break;
|
|
case 1: assert(d == 'e'); break;
|
|
case 2: assert(d == 'l'); break;
|
|
case 3: assert(d == 'l'); break;
|
|
case 4: assert(d == 'o'); break;
|
|
default: assert(0);
|
|
}
|
|
i++;
|
|
}
|
|
assert(i == 5);
|
|
|
|
s = "a\u1234\U000A0456b";
|
|
i = 0;
|
|
foreach (k, char d; s)
|
|
{
|
|
//printf("i = %d, k = %d, d = %x\n", i, k, d);
|
|
switch (i)
|
|
{
|
|
case 0: assert(k == 0); assert(d == 'a'); break;
|
|
case 1: assert(k == 1); assert(d == 0xE1); break;
|
|
case 2: assert(k == 1); assert(d == 0x88); break;
|
|
case 3: assert(k == 1); assert(d == 0xB4); break;
|
|
case 4: assert(k == 2); assert(d == 0xF2); break;
|
|
case 5: assert(k == 2); assert(d == 0xA0); break;
|
|
case 6: assert(k == 2); assert(d == 0x91); break;
|
|
case 7: assert(k == 2); assert(d == 0x96); break;
|
|
case 8: assert(k == 3); assert(d == 'b'); break;
|
|
default: assert(0);
|
|
}
|
|
i++;
|
|
}
|
|
assert(i == 9);
|
|
}
|
|
|
|
/*****************************/
|
|
|
|
extern (C) int _aApplydw2(in dchar[] aa, dg2_t dg)
|
|
{ int result;
|
|
|
|
debug(apply) printf("_aApplydw2(), len = %d\n", aa.length);
|
|
foreach (size_t i, dchar d; aa)
|
|
{
|
|
wchar w;
|
|
auto j = i;
|
|
|
|
if (d <= 0xFFFF)
|
|
w = cast(wchar) d;
|
|
else
|
|
{
|
|
w = cast(wchar) ((((d - 0x10000) >> 10) & 0x3FF) + 0xD800);
|
|
result = dg(&j, cast(void *)&w);
|
|
if (result)
|
|
break;
|
|
w = cast(wchar) (((d - 0x10000) & 0x3FF) + 0xDC00);
|
|
}
|
|
result = dg(&j, cast(void *)&w);
|
|
if (result)
|
|
break;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
unittest
|
|
{
|
|
debug(apply) printf("_aApplydw2.unittest\n");
|
|
|
|
auto s = "hello"d[];
|
|
int i;
|
|
|
|
foreach (k, wchar d; s)
|
|
{
|
|
//printf("i = %d, k = %d, d = %x\n", i, k, d);
|
|
assert(k == i);
|
|
switch (i)
|
|
{
|
|
case 0: assert(d == 'h'); break;
|
|
case 1: assert(d == 'e'); break;
|
|
case 2: assert(d == 'l'); break;
|
|
case 3: assert(d == 'l'); break;
|
|
case 4: assert(d == 'o'); break;
|
|
default: assert(0);
|
|
}
|
|
i++;
|
|
}
|
|
assert(i == 5);
|
|
|
|
s = "a\u1234\U000A0456b";
|
|
i = 0;
|
|
foreach (k, wchar d; s)
|
|
{
|
|
//printf("i = %d, k = %d, d = %x\n", i, k, d);
|
|
switch (i)
|
|
{
|
|
case 0: assert(k == 0); assert(d == 'a'); break;
|
|
case 1: assert(k == 1); assert(d == 0x1234); break;
|
|
case 2: assert(k == 2); assert(d == 0xDA41); break;
|
|
case 3: assert(k == 2); assert(d == 0xDC56); break;
|
|
case 4: assert(k == 3); assert(d == 'b'); break;
|
|
default: assert(0);
|
|
}
|
|
i++;
|
|
}
|
|
assert(i == 5);
|
|
}
|