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Diffstat (limited to 'indra/llcommon/llstreamtools.h')
-rw-r--r-- | indra/llcommon/llstreamtools.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/indra/llcommon/llstreamtools.h b/indra/llcommon/llstreamtools.h new file mode 100644 index 0000000000..e4099aac57 --- /dev/null +++ b/indra/llcommon/llstreamtools.h @@ -0,0 +1,98 @@ +/** + * @file llstreamtools.h + * @brief some helper functions for parsing legacy simstate and asset files. + * + * Copyright (c) 2005-$CurrentYear$, Linden Research, Inc. + * $License$ + */ + +#ifndef LL_STREAM_TOOLS_H +#define LL_STREAM_TOOLS_H + +#include <iostream> +#include <string> + +// unless specifed otherwise these all return input_stream.good() + +// skips spaces and tabs +bool skip_whitespace(std::istream& input_stream); + +// skips whitespace and newlines +bool skip_emptyspace(std::istream& input_stream); + +// skips emptyspace and lines that start with a # +bool skip_comments_and_emptyspace(std::istream& input_stream); + +// skips to character after next newline +bool skip_line(std::istream& input_stream); + +// skips to beginning of next non-emptyspace +bool skip_to_next_word(std::istream& input_stream); + +// skips to character after the end of next keyword +// a 'keyword' is defined as the first word on a line +bool skip_to_end_of_next_keyword(const char* keyword, std::istream& input_stream); + +// skip_to_start_of_next_keyword() is disabled -- might tickle corruption bug +// in windows iostream +// skips to beginning of next keyword +// a 'keyword' is defined as the first word on a line +//bool skip_to_start_of_next_keyword(const char* keyword, std::istream& input_stream); + +// characters are pulled out of input_stream and appended to output_string +bool get_word(std::string& output_string, std::istream& input_stream); +bool get_line(std::string& output_string, std::istream& input_stream); + +// characters are pulled out of input_stream (up to a max of 'n') +// and appended to output_string +bool get_word(std::string& output_string, std::istream& input_stream, int n); +bool get_line(std::string& output_string, std::istream& input_stream, int n); + +// unget_line() is disabled -- might tickle corruption bug in windows iostream +//// backs up the input_stream by line_size + 1 characters +//bool unget_line(const std::string& line, std::istream& input_stream); + +// TODO -- move these string manipulator functions to a different file + +// removes the last char in 'line' if it matches 'c' +// returns true if removed last char +bool remove_last_char(char c, std::string& line); + +// replaces escaped characters with the correct characters from left to right +// "\\" ---> '\\' +// "\n" ---> '\n' +void unescape_string(std::string& line); + +// replaces unescaped characters with expanded equivalents from left to right +// '\\' ---> "\\" +// '\n' ---> "\n" +void escape_string(std::string& line); + +// replaces each '\n' character with ' ' +void replace_newlines_with_whitespace(std::string& line); + +// returns 1 for solitary "{" +// returns -1 for solitary "}" +// otherwise returns 0 +int get_brace_count(const std::string& line); + +// erases any double-quote characters in line +void remove_double_quotes(std::string& line); + +// the 'keyword' is defined as the first word on a line +// the 'value' is everything after the keyword on the same line +// starting at the first non-whitespace and ending right before the newline +void get_keyword_and_value(std::string& keyword, + std::string& value, + const std::string& line); + +// continue to read from the stream until you really can't +// read anymore or until we hit the count. Some istream +// implimentations have a max that they will read. +std::istream& fullread(std::istream& str, char *buf, std::streamsize requested); + +std::istream& operator>>(std::istream& str, const char *tocheck); + +#endif + + |