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annotate src/impl/hoofbaby/util/meta.d @ 0:3425707ddbf6

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Initial import (hopefully this mercurial stuff works...)
author fraserofthenight
date Mon, 06 Jul 2009 08:06:28 -0700
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1 /**
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2 * Hoofbaby -- http://www.dsource.org/projects/hoofbaby
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3 * Copyright (C) 2009 Robert Fraser
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4 *
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5 * This program is free software; you can redistribute it andor
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6 * modify it under the terms of the GNU General Public License
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7 * as published by the Free Software Foundation; either version 2
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8 * of the License, or (at your option) any later version.
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9 *
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10 * This program is distributed in the hope that it will be useful,
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 * GNU General Public License for more details.
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14 */
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15
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16 module hoofbaby.util.meta;
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17
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18 public char[] ctfeItoa(int n)
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19 {
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20 bool neg = false;
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21 char[] r;
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22 if (n < 0)
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23 {
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24 n = -n;
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25 neg = true;
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26 }
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27 do
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28 {
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29 r = cast(char)('0' + (n % 10)) ~ r;
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30 } while ((n /= 10) > 0);
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31 if(neg)
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32 r = '-' ~ r;
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33 return r;
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34 }
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35
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36 public bool ctfeStartsWith(char[] haystack, char[] needle)
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37 {
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38 for(int i = 0; i < needle.length; i++)
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39 {
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40 if(i >= haystack.length || haystack[i] != needle[i])
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41 return false;
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42 }
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43 return true;
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44 }
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45
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46 public char[] ctfeReplace(char[] text, char[] search, char[] rep)
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47 {
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48 char[] r;
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49 int slen = search.length;
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50 int tlen = text.length - slen + 1;
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51 int lendiff = rep.length - slen;
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52 int i = 0;
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53 int j = 0;
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54 for(i = 0; i < tlen; i++)
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55 {
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56 if(text[i .. i + slen] == search)
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57 {
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58 r ~= text[j .. i] ~ rep;
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59 i = j = i + slen;
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60 }
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61 }
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62 r ~= text[j .. $];
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63 return r;
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64 }