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-rw-r--r--src/libargparser/argparser.c126
-rw-r--r--src/libargparser/argparser.h296
2 files changed, 422 insertions, 0 deletions
diff --git a/src/libargparser/argparser.c b/src/libargparser/argparser.c
new file mode 100644
index 0000000..d0aa957
--- /dev/null
+++ b/src/libargparser/argparser.c
@@ -0,0 +1,126 @@
+/**
+ * argparser – command line argument parser library
+ *
+ * Copyright © 2013, 2014 Mattias Andrée (maandree@member.fsf.org)
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+#include "argparser.h"
+
+
+
+/**
+ * Dummy trigger
+ *
+ * @param user_data User-data
+ * @param used The used option alternative
+ * @param standard The standard option alternative
+ */
+void args_noop_trigger(void* user_data, const char* used, const char* standard)
+{
+ (void) user_data;
+ (void) used;
+ (void) standard;
+}
+
+
+/**
+ * Dummy trigger
+ *
+ * @param user_data User-data
+ * @param used The used option alternative
+ * @param standard The standard option alternative
+ * @param value The used value
+ */
+void args_noop_trigger_v(void* user_data, const char* used, const char* standard, char* value)
+{
+ (void) user_data;
+ (void) used;
+ (void) standard;
+ (void) value;
+}
+
+
+/**
+ * Stickless evaluator to always evaluates to false
+ *
+ * @param user_data User-data
+ * @param argument The next argument
+ * @return Whether the argument can be used without being sticky
+ */
+int args_no_stickless(void* user_data, const char* value)
+{
+ (void) user_data;
+ (void) value;
+ return 0;
+}
+
+
+/**
+ * Default stickless evaluator
+ *
+ * @param user_data User-data
+ * @param argument The next argument
+ * @return Whether the argument can be used without being sticky
+ */
+int args_default_stickless(void* user_data, const char* argument)
+{
+ (void) user_data;
+ return (*argument != '-') && (*argument != '+');
+}
+
+
+/**
+ * Evalutator for end argument of variadic options that always evalutes to false
+ *
+ * @param user_data User-data
+ * @param value The next argument
+ * @return Whether the argument can be used without being sticky
+ */
+int args_no_variadic_end(void* user_data, char* value)
+{
+ (void) user_data;
+ (void) value;
+ return 0;
+}
+
+
+/**
+ * The standard abbrevation expander
+ *
+ * @param argument The option that not recognised
+ * @param options All recognised options
+ * @param count The number of elements in `options`
+ * @return The only possible expansion, otherwise `null`
+ */
+const char* args_standard_abbreviations(const char* argument, const char** options, size_t count)
+{
+ const char* rc = null;
+ size_t i;
+ for (i = 0; i < count; i++)
+ {
+ size_t match = 0;
+ const char* opt = *(options + i);
+ while (*(argument + match) && (*(opt + match) == *(argument + match)))
+ match++;
+ if (*(argument + match) == 0)
+ {
+ if (rc)
+ return null;
+ rc = opt;
+ }
+ }
+ return rc;
+}
+
diff --git a/src/libargparser/argparser.h b/src/libargparser/argparser.h
new file mode 100644
index 0000000..af8477a
--- /dev/null
+++ b/src/libargparser/argparser.h
@@ -0,0 +1,296 @@
+/**
+ * argparser – command line argument parser library
+ *
+ * Copyright © 2013, 2014 Mattias Andrée (maandree@member.fsf.org)
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef ARGPARSER_H
+#define ARGPARSER_H
+
+
+#include <stddef.h>
+
+
+
+/**
+ * Option types
+ */
+typedef enum args_option_type
+ {
+ /**
+ * The option never takes any arguments
+ */
+ ARGUMENTLESS,
+
+ /**
+ * The option takes the next argument
+ */
+ ARGUMENTED,
+
+ /**
+ * The option may have an argument, either sticky
+ * or otherwise accepted by `stickless`
+ */
+ OPTARGUMENTED,
+
+ /**
+ * The option takes all following options
+ */
+ VARIADIC
+
+ } args_option_type_t;
+
+
+
+typedef struct args_option
+{
+ /**
+ * The type of the option
+ */
+ args_option_type_t type;
+
+ /**
+ * Alterative option names
+ */
+ const char** alternatives;
+
+ /**
+ * Number of elements in `alternatives`
+ */
+ size_t alternatives_count;
+
+ /**
+ * Standard option name
+ */
+ const char* standard;
+
+ /**
+ * Argument name, not for argumentless options
+ */
+ const char* argument;
+
+ /**
+ * Help text, multi-line
+ */
+ const char* help;
+
+ /**
+ * User-data used by methods associated with the option
+ */
+ void* user_data;
+
+ /**
+ * Invoked when the option is used
+ *
+ * @param user_data User-data
+ * @param standard The used option alternative
+ * @param used The standard option alternative
+ */
+ void (*trigger)(void* user_data, const char* standard, const char* used);
+
+ /**
+ * Invoked when the option is used
+ *
+ * @param user_data User-data
+ * @param standard The used option alternative
+ * @param used The standard option alternative
+ * @param value The used value
+ */
+ void (*trigger_v)(void* user_data, const char* standard, const char* used, char* value);
+
+ /**
+ * Should return true if the next argument can used for the argument without being sticky
+ *
+ * @param user_data User-data
+ * @param argument The next argument
+ * @return Whether the argument can be used without being sticky
+ */
+ int (*stickless)(void* user_data, const char* argument);
+
+ /**
+ * Should return true if the next argument can used for the argument
+ *
+ * @param user_data User-data
+ * @param value The next argument
+ * @return Whether the argument can be used
+ */
+ int (*variadic_end)(void* user_data, char* value);
+
+} args_option_t;
+
+
+/**
+ * Settings for argument parser
+ */
+typedef struct args_settings
+{
+ /**
+ * Whether the Linux VT is being used
+ */
+ int linuxvt;
+
+ /**
+ * Whether to use single dash/plus long options
+ */
+ int alternative;
+
+ /**
+ * The name of the executed command, will be freed by the parser
+ */
+ char* program;
+
+ /**
+ * Short, single-line, description of the program
+ */
+ const char* description;
+
+ /**
+ * Formated, multi-line, usage text, `NULL` if none
+ */
+ const char* usage;
+
+ /**
+ * Long, multi-line, description of the program, `NULL` if none
+ */
+ const char* longdescription;
+
+ /**
+ * The error output stream
+ */
+ FILE* error_out;
+
+ /**
+ * The warning output stream
+ */
+ FILE* warning_out;
+
+ /**
+ * The help output stream
+ */
+ FILE* help_out;
+
+ /**
+ * Abbreviated option expander, `null` for disabled
+ *
+ * @param argument The option that not recognised
+ * @param options All recognised options
+ * @param count The number of elements in `options`
+ * @return The only possible expansion, otherwise `NULL`
+ */
+ const char* (*abbreviations)(const char* stub, const char** options, size_t count);
+
+} args_settings_t;
+
+
+/**
+ * The state of the parser
+ */
+typedef struct args_state
+{
+ /**
+ * The passed arguments
+ */
+ char** arguments;
+
+ /**
+ * The number of passed arguments
+ */
+ size_t arguments_count;
+
+ /**
+ * The number of unrecognised arguments
+ */
+ size_t unrecognised_count;
+
+ /**
+ * The concatenation of `files` with blankspaces as delimiters, `null` if no files
+ */
+ char* message;
+
+ /**
+ * The arguments passed that is not tied to an option
+ */
+ char** files;
+
+ /**
+ * The number of elements in `args_files`
+ */
+ size_t files_count;
+
+} args_state_t;
+
+
+
+/**
+ * Dummy trigger
+ *
+ * @param user_data User-data
+ * @param used The used option alternative
+ * @param standard The standard option alternative
+ */
+void args_noop_trigger(void* user_data, const char* used, const char* standard);
+
+/**
+ * Dummy trigger
+ *
+ * @param user_data User-data
+ * @param used The used option alternative
+ * @param standard The standard option alternative
+ * @param value The used value
+ */
+void args_noop_trigger_v(void* user_data, const char* used, const char* standard, char* value);
+
+/**
+ * Stickless evaluator to always evaluates to false
+ *
+ * @param user_data User-data
+ * @param argument The next argument
+ * @return Whether the argument can be used without being sticky
+ */
+int args_no_stickless(void* user_data, const char* value);
+
+/**
+ * Default stickless evaluator
+ *
+ * @param user_data User-data
+ * @param argument The next argument
+ * @return Whether the argument can be used without being sticky
+ */
+int args_default_stickless(void* user_data, const char* argument);
+
+/**
+ * Evalutator for end argument of variadic options that always evalutes to false
+ *
+ * @param user_data User-data
+ * @param value The next argument
+ * @return Whether the argument can be used without being sticky
+ */
+int args_no_variadic_end(void* user_data, char* value);
+
+/**
+ * The standard abbrevation expander
+ *
+ * @param argument The option that not recognised
+ * @param options All recognised options
+ * @param count The number of elements in `options`
+ * @return The only possible expansion, otherwise `null`
+ */
+const char* args_standard_abbreviations(const char* argument, const char** options, size_t count);
+
+
+#endif
+
+
+
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