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apply.d
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apply.d
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/*
* apply.d
*
* This module implements the D runtime functions that involve UTF strings
* and foreach or foreach_reverse loops.
*
*/
module runtime.apply;
import runtime.common;
import core.unicode;
//import io.console;
extern(D) typedef int delegate(void*) apply_dg_t;
extern(D) typedef int delegate(size_t*, void*) apply_dg2_t;
extern(C):
private {
const char[] applyCode = `
// Capture the result
int result;
foreach(size_t idx, ref chr; array) {
// Call the loop body of the foreach, passing the pointer to the character
result = loopBody(&array[idx]);
// It will return nonzero when it breaks out of the loop early
if (result) {
return result;
}
}
// Return result
return result;
`;
const char[] indexedApplyCode = `
// Capture the result
int result;
foreach(size_t idx, ref chr; array) {
// Call the loop body of the foreach, passing the pointer to the character and index
result = loopBody(&idx, &array[idx]);
// It will return nonzero when it breaks out of the loop early
if (result) {
return result;
}
}
// Return result
return result;
`;
const char[] applyReverseCode = `
int result;
foreach_reverse(size_t idx, ref chr; array) {
// Call the loop body of the foreach, passing the pointer to the character and index
result = loopBody(&array[idx]);
// It will return nonzero when it breaks out of the loop early
if (result) {
return result;
}
}
return result;
`;
const char[] indexedApplyReverseCode = `
int result;
foreach_reverse(size_t idx, ref chr; array) {
// Call the loop body of the foreach, passing the pointer to the character and index
result = loopBody(&idx, &array[idx]);
// It will return nonzero when it breaks out of the loop early
if (result) {
return result;
}
}
return result;
`;
template _apply(T, char[] code) {
static if (is(T : dchar) && T.sizeof == dchar.sizeof) {
const char[] _apply = `
dchar[] array = Unicode.toUtf32(input);` ~ code;
}
else static if (is(T : wchar) && T.sizeof == wchar.sizeof) {
const char[] _apply = `
wchar[] array = Unicode.toUtf16(input);` ~ code;
}
else static if (is(T : char) && T.sizeof == char.sizeof) {
const char[] _apply = `
char[] array = Unicode.toUtf8(input);` ~ code;
}
else {
static assert(false, "Runtime mixin for string apply functions has been misused.");
}
}
}
// Description: This runtime function will decode a UTF8 string into wchar
// elements. Used with a foreach loop of the form: foreach(wchar ; char[]).
int _aApplycw1(char[] input, apply_dg_t loopBody) {
mixin(_apply!(wchar, applyCode));
}
// Description: This runtime function will decode a UTF8 string into dchar
// elements. Used with a foreach loop of the form: foreach(dchar ; char[]).
int _aApplycd1(char[] input, apply_dg_t loopBody) {
mixin(_apply!(dchar, applyCode));
}
// Description: This runtime function will decode a UTF16 string into char
// elements. Used with a foreach loop of the form: foreach(char;: wchar[]).
int _aApplywc1(wchar[] input, apply_dg_t loopBody) {
mixin(_apply!(char, applyCode));
}
// Description: This runtime function will decode a UTF16 string into dchar
// elements. Used with a foreach loop of the form: foreach(dchar ; wchar[]).
int _aApplywd1(wchar[] input, apply_dg_t loopBody) {
mixin(_apply!(dchar, applyCode));
}
// Description: This runtime function will decode a UTF32 string into char
// elements. Used with a foreach loop of the form: foreach(char ; dchar[]).
int _aApplydc1(dchar[] input, apply_dg_t loopBody) {
mixin(_apply!(char, applyCode));
}
// Description: This runtime function will decode a UTF32 string into wchar
// elements. Used with a foreach loop of the form: foreach(wchar ; dchar[]).
int _aApplydw1(dchar[] input, apply_dg_t loopBody) {
mixin(_apply!(wchar, applyCode));
}
// Description: This runtime function will decode a UTF8 string into wchar
// elements. Used with a foreach loop of the form: foreach(i, wchar ; char[]).
int _aApplycw2(char[] input, apply_dg2_t loopBody) {
mixin(_apply!(wchar, indexedApplyCode));
}
// Description: This runtime function will decode a UTF8 string into dchar
// elements. Used with a foreach loop of the form: foreach(i, dchar ; char[]).
int _aApplycd2(char[] input, apply_dg2_t loopBody) {
mixin(_apply!(dchar, indexedApplyCode));
}
// Description: This runtime function will decode a UTF16 string into char
// elements. Used with a foreach loop of the form: foreach(i, char ; wchar[]).
int _aApplywc2(wchar[] input, apply_dg2_t loopBody) {
mixin(_apply!(char, indexedApplyCode));
}
// Description: This runtime function will decode a UTF16 string into dchar
// elements. Used with a foreach loop of the form: foreach(i, dchar ; wchar[]).
int _aApplywd2(wchar[] input, apply_dg2_t loopBody) {
mixin(_apply!(dchar, indexedApplyCode));
}
// Description: This runtime function will decode a UTF32 string into char
// elements. Used with a foreach loop of the form: foreach(i, char ; dchar[]).
int _aApplydc2(dchar[] input, apply_dg2_t loopBody) {
mixin(_apply!(char, indexedApplyCode));
}
// Description: This runtime function will decode a UTF32 string into wchar
// elements. Used with a foreach loop of the form: foreach(i, wchar ; dchar[]).
int _aApplydw2(dchar[] input, apply_dg2_t loopBody) {
mixin(_apply!(wchar, indexedApplyCode));
}
// Description: This runtime function will decode a UTF8 string into wchar
// elements. Used with a foreach_reverse loop of the form:
// foreach_reverse(wchar ; char[]).
int _aApplyRcw1(char[] input, apply_dg_t loopBody) {
mixin(_apply!(wchar, applyReverseCode));
}
// Description: This runtime function will decode a UTF8 string into dchar
// elements. Used with a foreach_reverse loop of the form:
// foreach_reverse(dchar ; char[]).
int _aApplyRcd1(char[] input, apply_dg_t loopBody) {
mixin(_apply!(dchar, applyReverseCode));
}
// Description: This runtime function will decode a UTF16 string into char
// elements. Used with a foreach_reverse loop of the form:
// foreach_reverse(char;: wchar[]).
int _aApplyRwc1(wchar[] input, apply_dg_t loopBody) {
mixin(_apply!(char, applyReverseCode));
}
// Description: This runtime function will decode a UTF16 string into dchar
// elements. Used with a foreach_reverse loop of the form:
// foreach_reverse(dchar ; wchar[]).
int _aApplyRwd1(wchar[] input, apply_dg_t loopBody) {
mixin(_apply!(dchar, applyReverseCode));
}
// Description: This runtime function will decode a UTF32 string into char
// elements. Used with a foreach_reverse loop of the form:
// foreach_reverse(char ; dchar[]).
int _aApplyRdc1(dchar[] input, apply_dg_t loopBody) {
mixin(_apply!(char, applyReverseCode));
}
// Description: This runtime function will decode a UTF32 string into wchar
// elements. Used with a foreach_reverse loop of the form:
// foreach_reverse(wchar ; dchar[]).
int _aApplyRdw1(dchar[] input, apply_dg_t loopBody) {
mixin(_apply!(wchar, applyReverseCode));
}
// Description: This runtime function will decode a UTF8 string into wchar
// elements. Used with a foreach_reverse loop of the form:
// foreach_reverse(i, wchar ; char[]).
int _aApplyRcw2(char[] input, apply_dg2_t loopBody) {
mixin(_apply!(wchar, indexedApplyReverseCode));
}
// Description: This runtime function will decode a UTF8 string into dchar
// elements. Used with a foreach_reverse loop of the form:
// foreach_reverse(i, dchar ; char[]).
int _aApplyRcd2(char[] input, apply_dg2_t loopBody) {
mixin(_apply!(dchar, indexedApplyReverseCode));
}
// Description: This runtime function will decode a UTF16 string into char
// elements. Used with a foreach_reverse loop of the form:
// foreach_reverse(i, char ; wchar[]).
int _aApplyRwc2(wchar[] input, apply_dg2_t loopBody) {
mixin(_apply!(char, indexedApplyReverseCode));
}
// Description: This runtime function will decode a UTF16 string into dchar
// elements. Used with a foreach_reverse loop of the form:
// foreach_reverse(i, dchar ; wchar[]).
int _aApplyRwd2(wchar[] input, apply_dg2_t loopBody) {
mixin(_apply!(dchar, indexedApplyReverseCode));
}
// Description: This runtime function will decode a UTF32 string into char
// elements. Used with a foreach_reverse loop of the form:
// foreach_reverse(i, char ; dchar[]).
int _aApplyRdc2(dchar[] input, apply_dg2_t loopBody) {
mixin(_apply!(char, indexedApplyReverseCode));
}
// Description: This runtime function will decode a UTF32 string into wchar
// elements. Used with a foreach_reverse loop of the form:
// foreach_reverse(i, wchar ; dchar[]).
int _aApplyRdw2(dchar[] input, apply_dg2_t loopBody) {
mixin(_apply!(wchar, indexedApplyReverseCode));
}