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Diffstat (limited to 'project/dclib/dclib-parser.c')
| -rw-r--r-- | project/dclib/dclib-parser.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/project/dclib/dclib-parser.c b/project/dclib/dclib-parser.c new file mode 100644 index 0000000..2391cbc --- /dev/null +++ b/project/dclib/dclib-parser.c @@ -0,0 +1,150 @@ + +/*************************************************************************** + * * + * _____ ____ * + * | __ \ / __ \ _ _ _____ * + * | | \ \ / / \_\ | | | | _ \ * + * | | \ \| | | | | | |_| | * + * | | | || | | | | | ___/ * + * | | / /| | __ | | | | _ \ * + * | |__/ / \ \__/ / | |___| | |_| | * + * |_____/ \____/ |_____|_|_____/ * + * * + * Wiimms source code library * + * * + *************************************************************************** + * * + * Copyright (c) 2012-2022 by Dirk Clemens <wiimm@wiimm.de> * + * * + *************************************************************************** + * * + * This library is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This library is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * See file gpl-2.0.txt or http://www.gnu.org/licenses/gpl-2.0.txt * + * * + ***************************************************************************/ + +#define _GNU_SOURCE 1 + +#include "dclib-basics.h" +#include "dclib-parser.h" + +// +/////////////////////////////////////////////////////////////////////////////// +/////////////// ScanText_t /////////////// +/////////////////////////////////////////////////////////////////////////////// + +void SetupScanText ( ScanText_t *st, cvp data, uint data_size ) +{ + DASSERT(st); + memset(st,0,sizeof(*st)); + st->data = data; + st->data_size = data_size; + st->ignore_comments = true; + + RewindScanText(st); +} + +/////////////////////////////////////////////////////////////////////////////// + +void ResetScanText ( ScanText_t *st ) +{ + if (st) + { + if (st->fname_alloced) + FreeString(st->fname); + memset(st,0,sizeof(*st)); + } +} + +/////////////////////////////////////////////////////////////////////////////// + +void SetFilenameScanText( ScanText_t *st, ccp fname, CopyMode_t cm ) +{ + DASSERT(st); + if (st->fname_alloced) + FreeString(st->fname); + st->fname = CopyString(fname,cm,&st->fname_alloced); +} + +/////////////////////////////////////////////////////////////////////////////// + +void RewindScanText ( ScanText_t *st ) +{ + DASSERT(st); + + st->ptr = st->data; + st->eot = st->data + st->data_size; + st->line = st->data; + st->eol = st->data; + + st->is_eot = !st->ptr || st->ptr >= st->eot; + st->is_section = false; + st->is_term = st->is_eot; +} + +/////////////////////////////////////////////////////////////////////////////// + +bool NextLineScanText ( ScanText_t *st ) +{ + DASSERT(st); + st->is_section = false; + + ccp ptr = st->ptr; + ccp eot = st->eot; + if ( !ptr || ptr >= eot ) + { + st->line = st->eol = ptr; + st->is_eot = st->is_term = true; + return false; + } + + while ( ptr < eot ) + { + // skip leading spaced and controls + while ( ptr < eot && (uchar)*ptr <= ' ' ) + ptr++; + + ccp line = ptr; + while ( ptr < eot && *ptr && *ptr != '\r' && *ptr != '\n' ) + ptr++; + ccp eol = ptr; + while ( eol > line && eol[-1] == ' ' || eol[-1] == '\t' ) + eol--; + + if ( line == eol || *line == '#' && st->ignore_comments ) + continue; + if ( st->detect_sections > 0 + && *line == '[' + && eol[-1] == ']' + && !memchr(line+1,'[',eol-line-2) + && !memchr(line+1,']',eol-line-2) + ) + { + st->is_section = true; + } + + st->line = line; + st->eol = eol; + break; + } + + st->ptr = ptr; + st->is_eot = ptr >= eot; + st->is_term = st->is_eot || st->is_section; + return !st->is_term; +} + +// +/////////////////////////////////////////////////////////////////////////////// +/////////////// END /////////////// +/////////////////////////////////////////////////////////////////////////////// + |