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38 * \brief Generic string handling functions.
57 #include "../utility/gmx_header_config.h"
59 #include "types/simple.h"
61 /* Suppress Cygwin compiler warnings from using newlib version of
84 /** Continuation character. */
86 /** Comment sign to use. */
87 #define COMMENTSIGN ';'
90 * Strip trailing spaces and if s ends with a ::CONTINUE remove that too.
92 * \returns TRUE if s ends with a CONTINUE, FALSE otherwise.
94 int continuing(char *s);
97 * Reads a line from a stream.
99 * This routine reads a string from stream of max length n
100 * and zero terminated, without newlines.
101 * \p s should be long enough (>= \p n)
103 char *fgets2(char *s, int n, FILE *stream);
105 /** Remove portion of a line after a ::COMMENTSIGN. */
106 void strip_comment(char *line);
108 /** Make a string uppercase. */
109 void upstring(char *str);
111 /** Remove leading whitespace from a string. */
112 void ltrim(char *str);
114 /** Remove trailing whitespace from a string. */
115 void rtrim(char *str);
117 /** Remove leading and trailing whitespace from a string. */
118 void trim(char *str);
120 /** Portable version of ctime_r. */
121 char *gmx_ctime_r(const time_t *clock, char *buf, int n);
123 /** Prints creation time stamp and user information into a file as comments. */
124 void nice_header(FILE *out, const char *fn);
126 /** Version of gmx_strcasecmp() that also ignores '-' and '_'. */
127 int gmx_strcasecmp_min(const char *str1, const char *str2);
128 /** Version of gmx_strncasecmp() that also ignores '-' and '_'. */
129 int gmx_strncasecmp_min(const char *str1, const char *str2, int n);
131 /** Case-insensitive strcmp(). */
132 int gmx_strcasecmp(const char *str1, const char *str2);
133 /** Case-insensitive strncmp(). */
134 int gmx_strncasecmp(const char *str1, const char *str2, int n);
136 /** Creates a duplicate of \p src. */
137 char *gmx_strdup(const char *src);
138 /** Duplicates first \p n characters of \p src. */
139 char *gmx_strndup(const char *src, int n);
142 * Pattern matching with wildcards.
144 * \param[in] pattern Pattern to match against.
145 * \param[in] str String to match.
146 * \returns 0 on match, GMX_NO_WCMATCH if there is no match.
148 * Matches \p str against \p pattern, which may contain * and ? wildcards.
149 * All other characters are matched literally.
150 * Currently, it is not possible to match literal * or ?.
152 int gmx_wcmatch(const char *pattern, const char *str);
154 /** Magic hash initialization number from Dan J. Bernstein. */
155 extern const unsigned int
156 gmx_string_hash_init;
159 * Return a hash of the string according to Dan J. Bernsteins algorithm.
161 * \param[in] s String to calculate hash for.
162 * \param[in] hash_init Initial (or previous) hash value.
163 * \returns Updated hash value (hash_init combined with string hash).
165 * On the first invocation for a new string, use the constant
166 * gmx_string_hash_init for the second argument. If you want to create a hash
167 * corresponding to several concatenated strings, provide the returned hash
168 * value as hash_init for the second string, etc.
171 gmx_string_fullhash_func(const char *s, unsigned int hash_init);
174 * Return a hash of the string according to Dan J. Bernsteins algorithm.
176 * \param[in] s String to calculate hash for.
177 * \param[in] hash_init Initial (or previous) hash value.
178 * \returns Updated hash value (hash_init combined with string hash).
180 * Identical to gmx_string_fullhash_func, except that
181 * this routine only uses characters for which isalnum(c) is true,
182 * and all characters are converted to upper case.
185 gmx_string_hash_func(const char *s, unsigned int hash_init);
187 /** Return value for gmx_wcmatch() when there is no match. */
188 #define GMX_NO_WCMATCH 1
190 /** Our implementation of strsep, the thread-safe replacement for strtok. */
191 char *gmx_strsep(char **stringp, const char *delim);
194 * Wraps lines, optionally indenting lines.
196 * Wraps lines at \p linewidth, indenting all following lines by \p indent
197 * spaces. A temp buffer is allocated and returned, which can be disposed of
198 * if no longer needed.
199 * If \p bIndentFirst is FALSE, then the first line will not be indented, only
200 * the lines that are created due to wapping.
202 char *wrap_lines(const char *buf, int line_width, int indent,
203 gmx_bool bIndentFirst);
205 /** Implementation of the well-known Perl function split. */
206 char **split(char sep, const char *str);
209 * Convert a string to gmx_large_int_t.
211 * This method works as the standard library function strtol(), except that it
212 * does not support different bases.
215 * The following differences are present from the standard behavior:
216 * - \p endptr cannot be NULL.
217 * - If an overflow occurs, returns zero and \p *endptr will equal \p str.
218 * errno is still set to ERANGE.
220 gmx_large_int_t str_to_large_int_t(const char *str, char **endptr);
222 #ifdef GMX_NATIVE_WINDOWS
223 #define snprintf _snprintf
230 #endif /* _string2_h */