Mercurial > projects > ldc
diff druntime/src/compiler/dmd/aApply.d @ 1458:e0b2d67cfe7c
Added druntime (this should be removed once it works).
author | Robert Clipsham <robert@octarineparrot.com> |
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date | Tue, 02 Jun 2009 17:43:06 +0100 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/druntime/src/compiler/dmd/aApply.d Tue Jun 02 17:43:06 2009 +0100 @@ -0,0 +1,386 @@ +/** + * This code handles decoding UTF strings for foreach loops. There are 6 + * combinations of conversions between char, wchar, and dchar, and 2 of each + * of those. + * + * Copyright: Copyright Digital Mars 2004 - 2009. + * License: <a href="http://www.boost.org/LICENSE_1_0.txt>Boost License 1.0</a>. + * Authors: Walter Bright + * + * Copyright Digital Mars 2004 - 2009. + * Distributed under the Boost Software License, Version 1.0. + * (See accompanying file LICENSE_1_0.txt or copy at + * http://www.boost.org/LICENSE_1_0.txt) + */ +module rt.aApply; + +private import rt.util.utf; + +/********************************************** + */ + +// dg is D, but _aApplycd() is C +extern (D) typedef int delegate(void *) dg_t; + +extern (C) int _aApplycd1(char[] aa, dg_t dg) +{ int result; + size_t i; + size_t len = aa.length; + + debug(apply) printf("_aApplycd1(), len = %d\n", len); + for (i = 0; i < len; ) + { dchar d; + + d = aa[i]; + if (d & 0x80) + d = decode(aa, i); + else + i++; + result = dg(cast(void *)&d); + if (result) + break; + } + return result; +} + +extern (C) int _aApplywd1(wchar[] aa, dg_t dg) +{ int result; + size_t i; + size_t len = aa.length; + + debug(apply) printf("_aApplywd1(), len = %d\n", len); + for (i = 0; i < len; ) + { dchar d; + + d = aa[i]; + if (d & ~0x7F) + d = decode(aa, i); + else + i++; + result = dg(cast(void *)&d); + if (result) + break; + } + return result; +} + +extern (C) int _aApplycw1(char[] aa, dg_t dg) +{ int result; + size_t i; + size_t len = aa.length; + + debug(apply) printf("_aApplycw1(), len = %d\n", len); + for (i = 0; i < len; ) + { dchar d; + wchar w; + + w = aa[i]; + if (w & 0x80) + { d = decode(aa, i); + if (d <= 0xFFFF) + w = cast(wchar) d; + else + { + w = cast(wchar)((((d - 0x10000) >> 10) & 0x3FF) + 0xD800); + result = dg(cast(void *)&w); + if (result) + break; + w = cast(wchar)(((d - 0x10000) & 0x3FF) + 0xDC00); + } + } + else + i++; + result = dg(cast(void *)&w); + if (result) + break; + } + return result; +} + +extern (C) int _aApplywc1(wchar[] aa, dg_t dg) +{ int result; + size_t i; + size_t len = aa.length; + + debug(apply) printf("_aApplywc1(), len = %d\n", len); + for (i = 0; i < len; ) + { dchar d; + wchar w; + char c; + + w = aa[i]; + if (w & ~0x7F) + { + char[4] buf; + + d = decode(aa, i); + auto b = toUTF8(buf, d); + foreach (char c2; b) + { + result = dg(cast(void *)&c2); + if (result) + return result; + } + continue; + } + else + { c = cast(char)w; + i++; + } + result = dg(cast(void *)&c); + if (result) + break; + } + return result; +} + +extern (C) int _aApplydc1(dchar[] aa, dg_t dg) +{ int result; + + debug(apply) printf("_aApplydc1(), len = %d\n", aa.length); + foreach (dchar d; aa) + { + char c; + + if (d & ~0x7F) + { + char[4] buf; + + auto b = toUTF8(buf, d); + foreach (char c2; b) + { + result = dg(cast(void *)&c2); + if (result) + return result; + } + continue; + } + else + { + c = cast(char)d; + } + result = dg(cast(void *)&c); + if (result) + break; + } + return result; +} + +extern (C) int _aApplydw1(dchar[] aa, dg_t dg) +{ int result; + + debug(apply) printf("_aApplydw1(), len = %d\n", aa.length); + foreach (dchar d; aa) + { + wchar w; + + if (d <= 0xFFFF) + w = cast(wchar) d; + else + { + w = cast(wchar)((((d - 0x10000) >> 10) & 0x3FF) + 0xD800); + result = dg(cast(void *)&w); + if (result) + break; + w = cast(wchar)(((d - 0x10000) & 0x3FF) + 0xDC00); + } + result = dg(cast(void *)&w); + if (result) + break; + } + return result; +} + + +/****************************************************************************/ + +// dg is D, but _aApplycd2() is C +extern (D) typedef int delegate(void *, void *) dg2_t; + +extern (C) int _aApplycd2(char[] aa, dg2_t dg) +{ int result; + size_t i; + size_t n; + size_t len = aa.length; + + debug(apply) printf("_aApplycd2(), len = %d\n", len); + for (i = 0; i < len; i += n) + { dchar d; + + d = aa[i]; + if (d & 0x80) + { + n = i; + d = decode(aa, n); + n -= i; + } + else + n = 1; + result = dg(&i, cast(void *)&d); + if (result) + break; + } + return result; +} + +extern (C) int _aApplywd2(wchar[] aa, dg2_t dg) +{ int result; + size_t i; + size_t n; + size_t len = aa.length; + + debug(apply) printf("_aApplywd2(), len = %d\n", len); + for (i = 0; i < len; i += n) + { dchar d; + + d = aa[i]; + if (d & ~0x7F) + { + n = i; + d = decode(aa, n); + n -= i; + } + else + n = 1; + result = dg(&i, cast(void *)&d); + if (result) + break; + } + return result; +} + +extern (C) int _aApplycw2(char[] aa, dg2_t dg) +{ int result; + size_t i; + size_t n; + size_t len = aa.length; + + debug(apply) printf("_aApplycw2(), len = %d\n", len); + for (i = 0; i < len; i += n) + { dchar d; + wchar w; + + w = aa[i]; + if (w & 0x80) + { n = i; + 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; +} + +extern (C) int _aApplywc2(wchar[] aa, dg2_t dg) +{ int result; + size_t i; + size_t n; + size_t len = aa.length; + + debug(apply) printf("_aApplywc2(), len = %d\n", len); + for (i = 0; i < len; i += n) + { dchar d; + wchar w; + char c; + + w = aa[i]; + if (w & ~0x7F) + { + char[4] buf; + + n = i; + 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; + } + continue; + } + else + { c = cast(char)w; + n = 1; + } + result = dg(&i, cast(void *)&c); + if (result) + break; + } + return result; +} + +extern (C) int _aApplydc2(dchar[] aa, dg2_t dg) +{ int result; + size_t i; + size_t len = aa.length; + + debug(apply) printf("_aApplydc2(), len = %d\n", len); + for (i = 0; i < len; i++) + { dchar d; + char c; + + d = aa[i]; + if (d & ~0x7F) + { + char[4] buf; + + auto b = toUTF8(buf, d); + foreach (char c2; b) + { + result = dg(&i, cast(void *)&c2); + if (result) + return result; + } + continue; + } + else + { c = cast(char)d; + } + result = dg(&i, cast(void *)&c); + if (result) + break; + } + return result; +} + +extern (C) int _aApplydw2(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; +}