| Absolute File Name: | /home/opencoverage/opencoverage/guest-scripts/bash/src/lib/sh/wcsnwidth.c |
| Source code | Switch to Preprocessed file |
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| 1 | /* wcsnwidth.c - compute display width of wide character string, up to max | - | ||||||||||||
| 2 | specified width, return length. */ | - | ||||||||||||
| 3 | - | |||||||||||||
| 4 | /* Copyright (C) 2012 Free Software Foundation, Inc. | - | ||||||||||||
| 5 | - | |||||||||||||
| 6 | This file is part of GNU Bash, the Bourne Again SHell. | - | ||||||||||||
| 7 | - | |||||||||||||
| 8 | Bash is free software: you can redistribute it and/or modify | - | ||||||||||||
| 9 | it under the terms of the GNU General Public License as published by | - | ||||||||||||
| 10 | the Free Software Foundation, either version 3 of the License, or | - | ||||||||||||
| 11 | (at your option) any later version. | - | ||||||||||||
| 12 | - | |||||||||||||
| 13 | Bash is distributed in the hope that it will be useful, | - | ||||||||||||
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | - | ||||||||||||
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | - | ||||||||||||
| 16 | GNU General Public License for more details. | - | ||||||||||||
| 17 | - | |||||||||||||
| 18 | You should have received a copy of the GNU General Public License | - | ||||||||||||
| 19 | along with Bash. If not, see <http://www.gnu.org/licenses/>. | - | ||||||||||||
| 20 | */ | - | ||||||||||||
| 21 | - | |||||||||||||
| 22 | #include <config.h> | - | ||||||||||||
| 23 | - | |||||||||||||
| 24 | #if defined (HANDLE_MULTIBYTE) | - | ||||||||||||
| 25 | - | |||||||||||||
| 26 | #include <stdc.h> | - | ||||||||||||
| 27 | #include <wchar.h> | - | ||||||||||||
| 28 | #include <bashansi.h> | - | ||||||||||||
| 29 | - | |||||||||||||
| 30 | /* Return the number of wide characters that will be displayed from wide string | - | ||||||||||||
| 31 | PWCS. If the display width exceeds MAX, return the number of wide chars | - | ||||||||||||
| 32 | from PWCS required to display MAX characters on the screen. */ | - | ||||||||||||
| 33 | int | - | ||||||||||||
| 34 | wcsnwidth(pwcs, n, max) | - | ||||||||||||
| 35 | const wchar_t *pwcs; | - | ||||||||||||
| 36 | size_t n, max; | - | ||||||||||||
| 37 | { | - | ||||||||||||
| 38 | wchar_t wc, *ws; | - | ||||||||||||
| 39 | int len, l; | - | ||||||||||||
| 40 | - | |||||||||||||
| 41 | len = 0; | - | ||||||||||||
| 42 | ws = (wchar_t *)pwcs; | - | ||||||||||||
| 43 | while (n-- > 0 && (wc = *ws++) != L'\0')
| 0 | ||||||||||||
| 44 | { | - | ||||||||||||
| 45 | l = wcwidth (wc); | - | ||||||||||||
| 46 | if (l < 0)
| 0 | ||||||||||||
| 47 | return (-1); never executed: return (-1); | 0 | ||||||||||||
| 48 | else if (l == max - len)
| 0 | ||||||||||||
| 49 | return (ws - pwcs); never executed: return (ws - pwcs); | 0 | ||||||||||||
| 50 | else if (l > max - len)
| 0 | ||||||||||||
| 51 | return (--ws - pwcs); never executed: return (--ws - pwcs); | 0 | ||||||||||||
| 52 | len += l; | - | ||||||||||||
| 53 | } never executed: end of block | 0 | ||||||||||||
| 54 | return (ws - pwcs); never executed: return (ws - pwcs); | 0 | ||||||||||||
| 55 | } | - | ||||||||||||
| 56 | #endif | - | ||||||||||||
| Source code | Switch to Preprocessed file |