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45 lines
1.9 KiB
C++
45 lines
1.9 KiB
C++
/**********************************************************************
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* File: basedir.cpp (Formerly getpath.c)
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* Description: Find the directory location of the current executable using
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*PATH. Author: Ray Smith Created: Mon Jul 09 09:06:39 BST 1990
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*
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* (C) Copyright 1990, Hewlett-Packard Ltd.
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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** http://www.apache.org/licenses/LICENSE-2.0
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*
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**********************************************************************/
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#include "basedir.h"
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#include <stdlib.h>
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// Assuming that code_path is the name of some file in a desired directory,
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// returns the given code_path stripped back to the last slash, leaving
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// the last slash in place. If there is no slash, returns ./ assuming that
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// the input was the name of something in the current directory.
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// Useful for getting to the directory of argv[0], but does not search
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// any paths.
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TESS_API void truncate_path(const char *code_path, STRING* trunc_path) {
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int trunc_index = -1;
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if (code_path != nullptr) {
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const char* last_slash = strrchr(code_path, '/');
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if (last_slash != nullptr && last_slash + 1 - code_path > trunc_index)
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trunc_index = last_slash + 1 - code_path;
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last_slash = strrchr(code_path, '\\');
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if (last_slash != nullptr && last_slash + 1 - code_path > trunc_index)
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trunc_index = last_slash + 1 - code_path;
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}
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*trunc_path = code_path;
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if (trunc_index >= 0)
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trunc_path->truncate_at(trunc_index);
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else
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*trunc_path = "./";
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}
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