diff options
Diffstat (limited to 'src/cmd.c')
| -rw-r--r-- | src/cmd.c | 141 |
1 files changed, 91 insertions, 50 deletions
@@ -1,7 +1,7 @@ /** * @file src/cmd.c Command Interface * - * Copyright (C) 2010 Creytiv.com + * Copyright (C) 2010 - 2016 Creytiv.com */ #include <ctype.h> #include <string.h> @@ -29,10 +29,8 @@ struct cmd_ctx { }; -static struct list cmdl; /**< List of command blocks (struct cmds) */ - - static int cmd_print_all(struct re_printf *pf, + const struct commands *commands, bool print_long, bool print_short, const char *match, size_t match_len); @@ -75,14 +73,15 @@ static int ctx_alloc(struct cmd_ctx **ctxp, const struct cmd *cmd) } -static struct cmds *cmds_find(const struct cmd *cmdv) +static struct cmds *cmds_find(const struct commands *commands, + const struct cmd *cmdv) { struct le *le; - if (!cmdv) + if (!commands || !cmdv) return NULL; - for (le = cmdl.head; le; le = le->next) { + for (le = commands->cmdl.head; le; le = le->next) { struct cmds *cmds = le->data; if (cmds->cmdv == cmdv) @@ -93,11 +92,15 @@ static struct cmds *cmds_find(const struct cmd *cmdv) } -static const struct cmd *cmd_find_by_key(char key) +static const struct cmd *cmd_find_by_key(const struct commands *commands, + char key) { struct le *le; - for (le = cmdl.tail; le; le = le->prev) { + if (!commands) + return NULL; + + for (le = commands->cmdl.tail; le; le = le->prev) { struct cmds *cmds = le->data; size_t i; @@ -134,13 +137,17 @@ static const char *cmd_name(char *buf, size_t sz, const struct cmd *cmd) } -static size_t get_match(const struct cmd **cmdp, +static size_t get_match(const struct commands *commands, + const struct cmd **cmdp, const char *str, size_t len) { struct le *le; size_t nmatch = 0; - for (le = cmdl.head; le; le = le->next) { + if (!commands) + return 0; + + for (le = commands->cmdl.head; le; le = le->next) { struct cmds *cmds = le->data; size_t i; @@ -165,7 +172,7 @@ static size_t get_match(const struct cmd **cmdp, } -static int editor_input(struct mbuf *mb, char key, +static int editor_input(struct commands *commands, struct mbuf *mb, char key, struct re_printf *pf, bool *del, bool is_long) { int err = 0; @@ -209,12 +216,13 @@ static int editor_input(struct mbuf *mb, char key, * we can regard it as TAB completion. */ - err = cmd_print_all(pf, true, false, + err = cmd_print_all(pf, commands, true, false, (char *)mb->buf, mb->end); if (err) return err; - n = get_match(&cmd, (char *)mb->buf, mb->end); + n = get_match(commands, &cmd, + (char *)mb->buf, mb->end); if (n == 1 && cmd) { re_printf("replace: %b -> %s\n", @@ -273,7 +281,7 @@ static int cmd_report(const struct cmd *cmd, struct re_printf *pf, } -int cmd_process_long(const char *str, size_t len, +int cmd_process_long(struct commands *commands, const char *str, size_t len, struct re_printf *pf_resp, void *data) { struct cmd_arg arg; @@ -298,7 +306,7 @@ int cmd_process_long(const char *str, size_t len, if (err) goto out; - cmd_long = cmd_find_long(name); + cmd_long = cmd_find_long(commands, name); if (cmd_long) { arg.key = LONG_PREFIX; @@ -321,7 +329,8 @@ int cmd_process_long(const char *str, size_t len, } -static int cmd_process_edit(struct cmd_ctx **ctxp, char key, +static int cmd_process_edit(struct commands *commands, + struct cmd_ctx **ctxp, char key, struct re_printf *pf, void *data) { struct cmd_ctx *ctx; @@ -333,7 +342,7 @@ static int cmd_process_edit(struct cmd_ctx **ctxp, char key, ctx = *ctxp; - err = editor_input(ctx->mb, key, pf, &del, ctx->is_long); + err = editor_input(commands, ctx->mb, key, pf, &del, ctx->is_long); if (err) return err; @@ -341,7 +350,8 @@ static int cmd_process_edit(struct cmd_ctx **ctxp, char key, if (compl) { - err = cmd_process_long((char *)ctx->mb->buf, + err = cmd_process_long(commands, + (char *)ctx->mb->buf, ctx->mb->end, pf, data); } @@ -362,20 +372,22 @@ static int cmd_process_edit(struct cmd_ctx **ctxp, char key, /** * Register commands * - * @param cmdv Array of commands - * @param cmdc Number of commands + * @param commands Commands container + * @param cmdv Array of commands + * @param cmdc Number of commands * * @return 0 if success, otherwise errorcode */ -int cmd_register(const struct cmd *cmdv, size_t cmdc) +int cmd_register(struct commands *commands, + const struct cmd *cmdv, size_t cmdc) { struct cmds *cmds; size_t i; - if (!cmdv || !cmdc) + if (!commands || !cmdv || !cmdc) return EINVAL; - cmds = cmds_find(cmdv); + cmds = cmds_find(commands, cmdv); if (cmds) return EALREADY; @@ -389,7 +401,8 @@ int cmd_register(const struct cmd *cmdv, size_t cmdc) return EINVAL; } - if (str_isset(cmd->name) && cmd_find_long(cmd->name)) { + if (str_isset(cmd->name) && + cmd_find_long(commands, cmd->name)) { warning("cmd: long command '%s' already registered\n", cmd->name); return EINVAL; @@ -403,7 +416,7 @@ int cmd_register(const struct cmd *cmdv, size_t cmdc) cmds->cmdv = cmdv; cmds->cmdc = cmdc; - list_append(&cmdl, &cmds->le, cmds); + list_append(&commands->cmdl, &cmds->le, cmds); return 0; } @@ -412,22 +425,24 @@ int cmd_register(const struct cmd *cmdv, size_t cmdc) /** * Unregister commands * - * @param cmdv Array of commands + * @param commands Commands container + * @param cmdv Array of commands */ -void cmd_unregister(const struct cmd *cmdv) +void cmd_unregister(struct commands *commands, const struct cmd *cmdv) { - mem_deref(cmds_find(cmdv)); + mem_deref(cmds_find(commands, cmdv)); } -const struct cmd *cmd_find_long(const char *name) +const struct cmd *cmd_find_long(const struct commands *commands, + const char *name) { struct le *le; - if (!name) + if (!commands || !name) return NULL; - for (le = cmdl.tail; le; le = le->prev) { + for (le = commands->cmdl.tail; le; le = le->prev) { struct cmds *cmds = le->data; size_t i; @@ -448,28 +463,32 @@ const struct cmd *cmd_find_long(const char *name) /** * Process input characters to the command system * - * @param ctxp Pointer to context for editor (optional) - * @param key Input character - * @param pf Print function - * @param data Application data + * @param commands Commands container + * @param ctxp Pointer to context for editor (optional) + * @param key Input character + * @param pf Print function + * @param data Application data * * @return 0 if success, otherwise errorcode */ -int cmd_process(struct cmd_ctx **ctxp, char key, struct re_printf *pf, - void *data) +int cmd_process(struct commands *commands, struct cmd_ctx **ctxp, char key, + struct re_printf *pf, void *data) { const struct cmd *cmd; + if (!commands) + return EINVAL; + /* are we in edit-mode? */ if (ctxp && *ctxp) { if (key == KEYCODE_REL) return 0; - return cmd_process_edit(ctxp, key, pf, data); + return cmd_process_edit(commands, ctxp, key, pf, data); } - cmd = cmd_find_by_key(key); + cmd = cmd_find_by_key(commands, key); if (cmd) { struct cmd_arg arg; @@ -486,7 +505,7 @@ int cmd_process(struct cmd_ctx **ctxp, char key, struct re_printf *pf, key = isdigit(key) ? key : KEYCODE_REL; - return cmd_process_edit(ctxp, key, pf, data); + return cmd_process_edit(commands, ctxp, key, pf, data); } arg.key = key; @@ -518,13 +537,13 @@ int cmd_process(struct cmd_ctx **ctxp, char key, struct re_printf *pf, return 0; } else if (key == '\t') { - return cmd_print_all(pf, false, true, NULL, 0); + return cmd_print_all(pf, commands, false, true, NULL, 0); } if (key == KEYCODE_REL) return 0; - return cmd_print(pf, NULL); + return cmd_print(pf, commands); } @@ -553,6 +572,7 @@ static bool sort_handler(struct le *le1, struct le *le2, void *arg) static int cmd_print_all(struct re_printf *pf, + const struct commands *commands, bool print_long, bool print_short, const char *match, size_t match_len) { @@ -564,7 +584,10 @@ static int cmd_print_all(struct re_printf *pf, char buf[16]; int err = 0; - for (le = cmdl.head; le; le = le->next) { + if (!commands) + return EINVAL; + + for (le = commands->cmdl.head; le; le = le->next) { struct cmds *cmds = le->data; size_t i; @@ -646,23 +669,41 @@ static int cmd_print_all(struct re_printf *pf, /** * Print a list of available commands * - * @param pf Print function - * @param unused Unused variable + * @param pf Print function + * @param commands Commands container * * @return 0 if success, otherwise errorcode */ -int cmd_print(struct re_printf *pf, void *unused) +int cmd_print(struct re_printf *pf, const struct commands *commands) { int err = 0; - (void)unused; - if (!pf) return EINVAL; err |= re_hprintf(pf, "--- Help ---\n"); - err |= cmd_print_all(pf, true, true, NULL, 0); + err |= cmd_print_all(pf, commands, true, true, NULL, 0); err |= re_hprintf(pf, "\n"); return err; } + + +int cmd_init(struct commands *commands) +{ + if (!commands) + return EINVAL; + + list_init(&commands->cmdl); + + return 0; +} + + +void cmd_close(struct commands *commands) +{ + if (!commands) + return; + + list_flush(&commands->cmdl); +} |