X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Foutput%2Fdriver.c;h=f627e31248d69c1398739bd369307ec94dcd86fc;hb=6417b81fb2d5665471ba9fadd180ed1ddeb29246;hp=6dd25174fb5d7ec6569315b14605dc6345b8e473;hpb=dfd1972f7bcb550a4fc3b05dbe7e71d12334b0a7;p=pspp diff --git a/src/output/driver.c b/src/output/driver.c index 6dd25174fb..f627e31248 100644 --- a/src/output/driver.c +++ b/src/output/driver.c @@ -1,5 +1,5 @@ /* PSPP - a program for statistical analysis. - Copyright (C) 1997-9, 2000, 2007, 2009 Free Software Foundation, Inc. + Copyright (C) 1997-9, 2000, 2007, 2009, 2010, 2011, 2012, 2014, 2019 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -16,636 +16,405 @@ #include -#include -#include +#include "output/driver.h" +#include "output/driver-provider.h" #include #include #include +#include #include #include - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "error.h" -#include "xalloc.h" -#include "xmemdup0.h" +#include + +#include "data/file-handle-def.h" +#include "data/settings.h" +#include "libpspp/array.h" +#include "libpspp/assertion.h" +#include "libpspp/i18n.h" +#include "libpspp/message.h" +#include "libpspp/llx.h" +#include "libpspp/string-map.h" +#include "libpspp/string-set.h" +#include "libpspp/str.h" +#include "output/output-item.h" + +#include "gl/error.h" +#include "gl/xalloc.h" +#include "gl/xmemdup0.h" +#include "gl/xvasprintf.h" #include "gettext.h" #define _(msgid) gettext (msgid) -static const struct output_driver_class *driver_classes[]; - -static struct output_driver **drivers; -static size_t n_drivers, allocated_drivers; +struct output_engine + { + struct ll ll; /* Node for this engine. */ + struct llx_list drivers; /* Contains "struct output_driver"s. */ + struct output_item *deferred_text; /* Output text being accumulated. */ + char *command_name; /* Name of command being processed. */ + char *title, *subtitle; /* Components of page title. */ + + /* Output grouping stack. */ + struct output_item **groups; + size_t n_groups; + size_t allocated_groups; + + struct string_map heading_vars; + }; -static unsigned int enabled_device_types = ((1u << OUTPUT_DEVICE_UNKNOWN) - | (1u << OUTPUT_DEVICE_LISTING) - | (1u << OUTPUT_DEVICE_SCREEN) - | (1u << OUTPUT_DEVICE_PRINTER)); +static struct ll_list engine_stack = LL_INITIALIZER (engine_stack); -static struct output_item *deferred_syntax; -static bool in_command; +static const struct output_driver_factory *factories[]; -void -output_close (void) +static struct output_engine * +engine_stack_top (void) { - while (n_drivers > 0) - { - struct output_driver *d = drivers[--n_drivers]; - output_driver_destroy (d); - } + struct ll *head = ll_head (&engine_stack); + if (ll_is_empty (&engine_stack)) + return NULL; + return ll_data (head, struct output_engine, ll); } static void -expand_macro (const char *name, struct string *dst, void *macros_) +put_strftime (const char *key, const char *format, + const struct tm *tm, struct string_map *vars) { - const struct string_map *macros = macros_; - - if (!strcmp (name, "viewwidth")) - ds_put_format (dst, "%d", settings_get_viewwidth ()); - else if (!strcmp (name, "viewlength")) - ds_put_format (dst, "%d", settings_get_viewlength ()); - else + if (!string_map_find (vars, key)) { - const char *value = string_map_find (macros, name); - if (value != NULL) - ds_put_cstr (dst, value); + char value[128]; + strftime (value, sizeof value, format, tm); + string_map_insert (vars, key, value); } } -/* Defines one configuration macro based on the text in BP, which - should be of the form `KEY=VALUE'. Returns true if - successful, false if S is not in the proper form. */ -bool -output_define_macro (const char *s, struct string_map *macros) +void +output_engine_push (void) { - const char *key_start, *value; - size_t key_len; - char *key; - - s += strspn (s, CC_SPACES); - - key_start = s; - key_len = strcspn (s, "=" CC_SPACES); - if (key_len == 0) - return false; - s += key_len; - - s += strspn (s, CC_SPACES); - if (*s == '=') - s++; + struct output_engine *e = XZALLOC (struct output_engine); - s += strspn (s, CC_SPACES); - value = s; - - key = xmemdup0 (key_start, key_len); - if (!string_map_contains (macros, key)) - { - struct string expanded_value = DS_EMPTY_INITIALIZER; - - fn_interp_vars (ss_cstr (value), expand_macro, ¯os, &expanded_value); - string_map_insert_nocopy (macros, key, ds_steal_cstr (&expanded_value)); - } - else - free (key); + llx_init (&e->drivers); - return true; -} + string_map_init (&e->heading_vars); -static void -add_driver_names (char *to, struct string_set *names) -{ - char *save_ptr = NULL; - char *name; + time_t t = time (NULL); + const struct tm *tm = localtime (&t); + put_strftime ("Date", "%x", tm, &e->heading_vars); + put_strftime ("Time", "%X", tm, &e->heading_vars); - for (name = strtok_r (to, CC_SPACES, &save_ptr); name != NULL; - name = strtok_r (NULL, CC_SPACES, &save_ptr)) - string_set_insert (names, name); + ll_push_head (&engine_stack, &e->ll); } -static void -init_default_drivers (void) +void +output_engine_pop (void) { - error (0, 0, _("using default output driver configuration")); - output_configure_driver ("list:ascii:listing:" - "length=66 width=79 output-file=\"pspp.list\""); + struct ll *head = ll_pop_head (&engine_stack); + struct output_engine *e = ll_data (head, struct output_engine, ll); + + struct output_driver *d; + llx_for_each_preremove (d, &e->drivers, &llx_malloc_mgr) + output_driver_destroy (d); + output_item_unref (e->deferred_text); + free (e->command_name); + free (e->title); + free (e->subtitle); + if (e->n_groups) + output_item_unref (e->groups[0]); + free (e->groups); + string_map_destroy (&e->heading_vars); + free (e); } -static void -warn_unused_drivers (const struct string_set *unused_drivers, - const struct string_set *requested_drivers) +void +output_get_supported_formats (struct string_set *formats) { - const struct string_set_node *node; - const char *name; + const struct output_driver_factory **fp; - STRING_SET_FOR_EACH (name, node, unused_drivers) - if (string_set_contains (requested_drivers, name)) - error (0, 0, _("unknown output driver `%s'"), name); - else - error (0, 0, _("output driver `%s' referenced but never defined"), name); + for (fp = factories; *fp != NULL; fp++) + string_set_insert (formats, (*fp)->extension); } -void -output_read_configuration (const struct string_map *macros_, - const struct string_set *driver_names_) +static bool +output_driver_should_show (const struct output_driver *d, + const struct output_item *item) { - struct string_map macros = STRING_MAP_INITIALIZER (macros); - struct string_set driver_names = STRING_SET_INITIALIZER (driver_names); - char *devices_file_name = NULL; - FILE *devices_file = NULL; - struct string line = DS_EMPTY_INITIALIZER; - int line_number; + enum settings_output_type type = SETTINGS_OUTPUT_RESULT; + switch (item->type) + { + case OUTPUT_ITEM_MESSAGE: + type = (item->message->severity == MSG_S_NOTE + ? SETTINGS_OUTPUT_NOTE + : SETTINGS_OUTPUT_ERROR); + break; - ds_init_empty (&line); + case OUTPUT_ITEM_TEXT: + if (item->text.subtype == TEXT_ITEM_SYNTAX) + type = SETTINGS_OUTPUT_SYNTAX; + break; - devices_file_name = fn_search_path ("devices", config_path); - if (devices_file_name == NULL) - { - error (0, 0, _("cannot find output initialization file " - "(use `-vv' to view search path)")); - goto exit; - } - devices_file = fopen (devices_file_name, "r"); - if (devices_file == NULL) - { - error (0, errno, _("cannot open \"%s\""), devices_file_name); - goto exit; + case OUTPUT_ITEM_CHART: + case OUTPUT_ITEM_GROUP: + case OUTPUT_ITEM_IMAGE: + case OUTPUT_ITEM_PAGE_BREAK: + case OUTPUT_ITEM_TABLE: + break; } - string_map_replace_map (¯os, macros_); - string_set_union (&driver_names, driver_names_); - if (string_set_is_empty (&driver_names)) - string_set_insert (&driver_names, "default"); + return (settings_get_output_routing (type) & d->device_type) != 0; +} - line_number = 0; - for (;;) +/* Adds to OUT the subset of IN that driver D should show, considering routing + and visibility of each item, and flattening groups for drivers that don't + handle them internally. */ +static void +make_driver_output_subset (const struct output_item *in, + const struct output_driver *d, + struct output_item *out) +{ + if (in->type == OUTPUT_ITEM_GROUP) { - char *cp, *delimiter, *name; - - if (!ds_read_config_line (&line, &line_number, devices_file)) - { - if (ferror (devices_file)) - error (0, errno, _("reading \"%s\""), devices_file_name); - break; - } - - cp = ds_cstr (&line); - cp += strspn (cp, CC_SPACES); - - if (*cp == '\0') - continue; - else if (!strncmp ("define", cp, 6) && isspace ((unsigned char) cp[6])) + /* If we should include the group itself, then clone IN inside OUT, and + add any children to the clone instead to OUT directly. */ + if (output_driver_should_show (d, in) && d->class->handles_groups) { - if (!output_define_macro (&cp[7], ¯os)) - error_at_line (0, 0, devices_file_name, line_number, - _("\"%s\" is not a valid macro definition"), - &cp[7]); - continue; + struct output_item *group = group_item_clone_empty (in); + group_item_add_child (out, group); + out = group; } - delimiter = cp + strcspn (cp, ":="); - name = xmemdup0 (cp, delimiter - cp); - if (*delimiter == '=') - { - if (string_set_delete (&driver_names, name)) - add_driver_names (delimiter + 1, &driver_names); - } - else if (*delimiter == ':') - { - if (string_set_delete (&driver_names, name)) - { - fn_interp_vars (ds_ss (&line), expand_macro, ¯os, &line); - output_configure_driver (ds_cstr (&line)); - } - } - else - error_at_line (0, 0, devices_file_name, line_number, - _("syntax error")); - free (name); + for (size_t i = 0; i < in->group.n_children; i++) + make_driver_output_subset (in->group.children[i], d, out); } - - warn_unused_drivers (&driver_names, driver_names_); - -exit: - if (devices_file != NULL) - fclose (devices_file); - free (devices_file_name); - ds_destroy (&line); - string_set_destroy (&driver_names); - string_map_destroy (¯os); - - if (n_drivers == 0) + else { - error (0, 0, _("no active output drivers")); - init_default_drivers (); + if (output_driver_should_show (d, in) + && (in->show || d->class->handles_show)) + group_item_add_child (out, output_item_ref (in)); } } -/* Obtains a token from S and advances its position. Errors are - reported against the given DRIVER_NAME. - The token is stored in TOKEN. Returns true if successful, - false on syntax error. - - Caller is responsible for skipping leading spaces. */ -static bool -get_option_token (char **s_, const char *driver_name, - struct string *token) +static void +output_submit__ (struct output_engine *e, struct output_item *item) { - struct substring s = ss_cstr (*s_); - int c; - - ds_clear (token); - c = ss_get_char (&s); - if (c == EOF) + if (e->n_groups > 0) { - error (0, 0, _("syntax error parsing options for \"%s\" driver"), - driver_name); - return false; + group_item_add_child (e->groups[e->n_groups - 1], item); + return; } - else if (c == '\'' || c == '"') - { - int quote = c; - - for (;;) - { - c = ss_get_char (&s); - if (c == quote) - break; - else if (c == EOF) - { - error (0, 0, - _("reached end of options inside quoted string " - "parsing options for \"%s\" driver"), - driver_name); - return false; - } - else if (c != '\\') - ds_put_char (token, c); - else - { - int out; - c = ss_get_char (&s); - switch (c) - { - case '\'': - out = '\''; - break; - case '"': - out = '"'; - break; - case '\\': - out = '\\'; - break; - case 'a': - out = '\a'; - break; - case 'b': - out = '\b'; - break; - case 'f': - out = '\f'; - break; - case 'n': - out = '\n'; - break; - case 'r': - out = '\r'; - break; - case 't': - out = '\t'; - break; - case 'v': - out = '\v'; - break; - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - out = c - '0'; - while (ss_first (s) >= '0' && ss_first (s) <= '7') - out = out * 8 + (ss_get_char (&s) - '0'); - break; - case 'x': - case 'X': - out = 0; - while (isxdigit (ss_first (s))) - { - c = ss_get_char (&s); - out *= 16; - if (isdigit (c)) - out += c - '0'; - else - out += tolower (c) - 'a' + 10; - } - break; - default: - error (0, 0, _("syntax error in string constant " - "parsing options for \"%s\" driver"), - driver_name); - return false; - } - ds_put_char (token, out); - } - } - } - else + struct llx *llx, *next; + llx_for_each_safe (llx, next, &e->drivers) { - for (;;) - { - ds_put_char (token, c); + struct output_driver *d = llx_data (llx); - c = ss_first (s); - if (c == EOF || c == '=' || isspace (c)) - break; - ss_advance (&s, 1); - } + struct output_item *root = root_item_create (); + make_driver_output_subset (item, d, root); + for (size_t i = 0; i < root->group.n_children; i++) + d->class->submit (d, root->group.children[i]); + output_item_unref (root); } - *s_ = s.string; - return 1; + output_item_unref (item); } static void -parse_options (const char *driver_name, char *options, - struct string_map *option_map) +flush_deferred_text (struct output_engine *e) { - struct string key = DS_EMPTY_INITIALIZER; - struct string value = DS_EMPTY_INITIALIZER; - - for (;;) + struct output_item *deferred_text = e->deferred_text; + if (deferred_text) { - options += strspn (options, CC_SPACES); - if (*options == '\0') - break; - - if (!get_option_token (&options, driver_name, &key)) - break; - - options += strspn (options, CC_SPACES); - if (*options != '=') - { - error (0, 0, _("syntax error expecting `=' " - "parsing options for driver \"%s\""), - driver_name); - break; - } - options++; - - options += strspn (options, CC_SPACES); - if (!get_option_token (&options, driver_name, &value)) - break; - - if (string_map_contains (option_map, ds_cstr (&key))) - error (0, 0, _("driver \"%s\" defines option \"%s\" multiple times"), - driver_name, ds_cstr (&key)); - else - string_map_insert (option_map, ds_cstr (&key), ds_cstr (&value)); + e->deferred_text = NULL; + output_submit__ (e, deferred_text); } - - ds_destroy (&key); - ds_destroy (&value); } -static char * -trim_token (char *token) +static bool +defer_text (struct output_engine *e, struct output_item *item) { - if (token != NULL) - { - char *end; - - /* Trim leading spaces. */ - while (isspace ((unsigned char) *token)) - token++; - - /* Trim trailing spaces. */ - end = strchr (token, '\0'); - while (end > token && isspace ((unsigned char) end[-1])) - *--end = '\0'; + if (item->type != OUTPUT_ITEM_TEXT) + return false; - /* An empty token is a null token. */ - if (*token == '\0') - return NULL; + if (!e->deferred_text) + e->deferred_text = output_item_unshare (item); + else if (text_item_append (e->deferred_text, item)) + output_item_unref (item); + else + { + flush_deferred_text (e); + e->deferred_text = output_item_unshare (item); } - return token; + return true; } -static const struct output_driver_class * -find_output_class (const char *name) +/* Submits ITEM to the configured output drivers, and transfers ownership to + the output subsystem. */ +void +output_submit (struct output_item *item) { - const struct output_driver_class **classp; + struct output_engine *e = engine_stack_top (); - for (classp = driver_classes; *classp != NULL; classp++) - if (!strcmp ((*classp)->name, name)) - break; + if (e == NULL) + return; - return *classp; + if (item == NULL) + return; + + if (defer_text (e, item)) + return; + flush_deferred_text (e); + + /* XXX heading_vars */ + + output_submit__ (e, item); } -static struct output_driver * -create_driver (const char *driver_name, const char *class_name, - const char *device_type, struct string_map *options) +/* Returns the name of the command currently being parsed, or NULL if no + command is being parsed. */ +const char * +output_get_command_name (void) { - const struct output_driver_class *class; - enum output_device_type type; - struct output_driver *driver; + struct output_engine *e = engine_stack_top (); + if (e == NULL) + return NULL; - type = OUTPUT_DEVICE_UNKNOWN; - if (device_type != NULL && device_type[0] != '\0') - { - if (!strcmp (device_type, "listing")) - type = OUTPUT_DEVICE_LISTING; - else if (!strcmp (device_type, "screen")) - type = OUTPUT_DEVICE_SCREEN; - else if (!strcmp (device_type, "printer")) - type = OUTPUT_DEVICE_PRINTER; - else - error (0, 0, _("unknown device type `%s'"), device_type); - } + for (size_t i = e->n_groups; i-- > 0;) + if (e->groups[i]->command_name) + return e->groups[i]->command_name; - class = find_output_class (class_name); - if (class != NULL) - driver = class->create (driver_name, type, options); - else - { - error (0, 0, _("unknown output driver class `%s'"), class_name); - driver = NULL; - } - - string_map_destroy (options); + return NULL; +} - return driver; +char * +output_get_uppercase_command_name (void) +{ + const char *command_name = output_get_command_name (); + return command_name ? utf8_to_upper (command_name) : NULL; } -struct output_driver * -output_driver_create (const char *class_name, struct string_map *options) +size_t +output_open_group (struct output_item *item) { - return create_driver (class_name, class_name, NULL, options); + struct output_engine *e = engine_stack_top (); + if (e == NULL) + return 0; + + if (e->n_groups >= e->allocated_groups) + e->groups = x2nrealloc (e->groups, &e->allocated_groups, + sizeof *e->groups); + e->groups[e->n_groups++] = item; + if (e->n_groups > 1) + group_item_add_child (e->groups[e->n_groups - 2], item); + + return e->n_groups - 1; } -/* String LINE is in format: - DRIVERNAME:CLASSNAME:DEVICETYPE:OPTIONS -*/ void -output_configure_driver (const char *line_) +output_close_groups (size_t nesting_level) { - char *save_ptr = NULL; - char *line = xstrdup (line_); - char *driver_name = trim_token (strtok_r (line, ":", &save_ptr)); - char *class_name = trim_token (strtok_r (NULL, ":", &save_ptr)); - char *device_type = trim_token (strtok_r (NULL, ":", &save_ptr)); - char *options = trim_token (strtok_r (NULL, "", &save_ptr)); + struct output_engine *e = engine_stack_top (); + if (e == NULL) + return; - if (driver_name && class_name) + while (e->n_groups > nesting_level) { - struct string_map option_map; - struct output_driver *driver; - - string_map_init (&option_map); - if (options != NULL) - parse_options (driver_name, options, &option_map); + flush_deferred_text (e); - driver = create_driver (driver_name, class_name, - device_type, &option_map); - if (driver != NULL) - output_driver_register (driver); + struct output_item *group = e->groups[--e->n_groups]; + if (e->n_groups == 0) + output_submit__ (e, group); } - else - error (0, 0, - _("driver definition line missing driver name or class name")); - - free (line); } -/* Display on stdout a list of all registered driver classes. */ +/* Flushes output to screen devices, so that the user can see + output that doesn't fill up an entire page. */ void -output_list_classes (void) +output_flush (void) { - const struct output_driver_class **classp; + struct output_engine *e = engine_stack_top (); - printf (_("Driver classes:")); - for (classp = driver_classes; *classp != NULL; classp++) - printf (" %s", (*classp)->name); - putc ('\n', stdout); -} + flush_deferred_text (e); -static bool -driver_is_enabled (const struct output_driver *d) -{ - return (1u << d->device_type) & enabled_device_types; + struct llx *llx; + llx_for_each (llx, &e->drivers) + { + struct output_driver *d = llx_data (llx); + if (d->device_type & SETTINGS_DEVICE_TERMINAL && d->class->flush != NULL) + d->class->flush (d); + } } static void -output_submit__ (struct output_item *item) +output_set_title__ (struct output_engine *e, char **dst, const char *src) { - size_t i; + free (*dst); + *dst = xstrdup_if_nonnull (src); + + char *page_title + = (e->title && e->subtitle ? xasprintf ("%s\n%s", e->title, e->subtitle) + : e->title ? xstrdup (e->title) + : e->subtitle ? xstrdup (e->subtitle) + : xzalloc (1)); + output_item_submit (text_item_create_nocopy (TEXT_ITEM_PAGE_TITLE, + page_title, NULL)); +} - for (i = 0; i < n_drivers; i++) - { - struct output_driver *d = drivers[i]; - if (driver_is_enabled (d)) - d->class->submit (d, item); - } +void PRINTF_FORMAT (1, 2) +output_log (const char *format, ...) +{ + va_list args; + va_start (args, format); + char *s = xvasprintf (format, args); + va_end (args); - output_item_unref (item); + output_log_nocopy (s); } -/* Submits ITEM to the configured output drivers, and transfers ownership to - the output subsystem. */ void -output_submit (struct output_item *item) +output_log_nocopy (char *s) { - if (is_text_item (item)) - { - struct text_item *text = to_text_item (item); - switch (text_item_get_type (text)) - { - case TEXT_ITEM_SYNTAX: - if (!in_command) - { - if (deferred_syntax != NULL) - output_submit__ (deferred_syntax); - deferred_syntax = item; - return; - } - break; - - case TEXT_ITEM_COMMAND_OPEN: - output_submit__ (item); - if (deferred_syntax != NULL) - { - output_submit__ (deferred_syntax); - deferred_syntax = NULL; - } - in_command = true; - return; - - case TEXT_ITEM_COMMAND_CLOSE: - in_command = false; - break; - - default: - break; - } - } + output_submit (text_item_create_nocopy (TEXT_ITEM_LOG, s, NULL)); +} - output_submit__ (item); +const char * +output_get_title (void) +{ + return engine_stack_top ()->title; } -/* Flushes output to screen devices, so that the user can see - output that doesn't fill up an entire page. */ void -output_flush (void) +output_set_title (const char *title) { - size_t i; + struct output_engine *e = engine_stack_top (); - for (i = 0; i < n_drivers; i++) - { - struct output_driver *d = drivers[i]; - if (driver_is_enabled (d) && d->class->flush != NULL) - d->class->flush (d); - } + output_set_title__ (e, &e->title, title); } -unsigned int -output_get_enabled_types (void) +const char * +output_get_subtitle (void) { - return enabled_device_types; + return engine_stack_top ()->subtitle; } void -output_set_enabled_types (unsigned int types) +output_set_subtitle (const char *subtitle) { - enabled_device_types = types; + struct output_engine *e = engine_stack_top (); + + output_set_title__ (e, &e->subtitle, subtitle); } void -output_set_type_enabled (bool enable, enum output_device_type type) +output_set_filename (const char *filename) { - unsigned int bit = 1u << type; - if (enable) - enabled_device_types |= bit; - else - enabled_device_types |= ~bit; + struct output_engine *e = engine_stack_top (); + + string_map_replace (&e->heading_vars, "Filename", filename); } void output_driver_init (struct output_driver *driver, const struct output_driver_class *class, - const char *name, enum output_device_type type) + const char *name, enum settings_output_devices type) { driver->class = class; driver->name = xstrdup (name); @@ -672,51 +441,227 @@ output_driver_get_name (const struct output_driver *driver) return driver->name; } +static struct output_engine * +output_driver_get_engine (const struct output_driver *driver) +{ + struct output_engine *e; + + ll_for_each (e, struct output_engine, ll, &engine_stack) + { + if (llx_find (llx_head (&e->drivers), llx_null (&e->drivers), driver)) + return e; + } + + return NULL; +} + void output_driver_register (struct output_driver *driver) { + struct output_engine *e = engine_stack_top (); + assert (!output_driver_is_registered (driver)); - if (n_drivers >= allocated_drivers) - drivers = x2nrealloc (drivers, &allocated_drivers, sizeof *drivers); - drivers[n_drivers++] = driver; + llx_push_tail (&e->drivers, driver, &llx_malloc_mgr); } void output_driver_unregister (struct output_driver *driver) { - size_t i; + struct output_engine *e = output_driver_get_engine (driver); - for (i = 0; i < n_drivers; i++) - if (drivers[i] == driver) - { - remove_element (drivers, n_drivers, sizeof *drivers, i); - return; - } - NOT_REACHED (); + assert (e != NULL); + llx_remove (llx_find (llx_head (&e->drivers), llx_null (&e->drivers), driver), + &llx_malloc_mgr); } bool output_driver_is_registered (const struct output_driver *driver) { - size_t i; + return output_driver_get_engine (driver) != NULL; +} - for (i = 0; i < n_drivers; i++) - if (drivers[i] == driver) - return true; - return false; +void +output_set_page_setup (const struct page_setup *ps) +{ + struct output_engine *e = engine_stack_top (); + + struct llx *llx; + llx_for_each (llx, &e->drivers) + { + struct output_driver *d = llx_data (llx); + if (d->class->setup) + d->class->setup (d, ps); + } } -/* Known driver classes. */ - -static const struct output_driver_class *driver_classes[] = +extern const struct output_driver_factory csv_driver_factory; +extern const struct output_driver_factory html_driver_factory; +extern const struct output_driver_factory list_driver_factory; +extern const struct output_driver_factory odt_driver_factory; +extern const struct output_driver_factory pdf_driver_factory; +extern const struct output_driver_factory png_driver_factory; +extern const struct output_driver_factory ps_driver_factory; +extern const struct output_driver_factory spv_driver_factory; +extern const struct output_driver_factory svg_driver_factory; +extern const struct output_driver_factory tex_driver_factory; +extern const struct output_driver_factory txt_driver_factory; + +static const struct output_driver_factory *factories[] = { - &ascii_class, -#ifdef HAVE_CAIRO - &cairo_class, -#endif - &html_class, - &odt_class, - &csv_class, - NULL, + &txt_driver_factory, + &list_driver_factory, + &html_driver_factory, + &csv_driver_factory, + &odt_driver_factory, + &spv_driver_factory, + &pdf_driver_factory, + &ps_driver_factory, + &svg_driver_factory, + &png_driver_factory, + &tex_driver_factory, + NULL }; +static const struct output_driver_factory * +find_factory (const char *format) +{ + const struct output_driver_factory **fp; + + for (fp = factories; *fp != NULL; fp++) + { + const struct output_driver_factory *f = *fp; + + if (!strcmp (f->extension, format)) + return f; + } + return &txt_driver_factory; +} + +static enum settings_output_devices +default_device_type (const char *file_name) +{ + return (!strcmp (file_name, "-") + ? SETTINGS_DEVICE_TERMINAL + : SETTINGS_DEVICE_LISTING); +} + +struct output_driver * +output_driver_create (struct string_map *options) +{ + enum settings_output_devices device_type; + const struct output_driver_factory *f; + struct output_driver *driver; + char *device_string; + char *file_name; + char *format; + + format = string_map_find_and_delete (options, "format"); + file_name = string_map_find_and_delete (options, "output-file"); + + if (format == NULL) + { + if (file_name != NULL) + { + const char *extension = strrchr (file_name, '.'); + format = xstrdup (extension != NULL ? extension + 1 : ""); + } + else + format = xstrdup ("txt"); + } + f = find_factory (format); + + if (file_name == NULL) + file_name = xstrdup (f->default_file_name); + + /* XXX should use parse_enum(). */ + device_string = string_map_find_and_delete (options, "device"); + if (device_string == NULL || device_string[0] == '\0') + device_type = default_device_type (file_name); + else if (!strcmp (device_string, "terminal")) + device_type = SETTINGS_DEVICE_TERMINAL; + else if (!strcmp (device_string, "listing")) + device_type = SETTINGS_DEVICE_LISTING; + else + { + msg (MW, _("%s is not a valid device type (the choices are `%s' and `%s')"), + device_string, "terminal", "listing"); + device_type = default_device_type (file_name); + } + + struct file_handle *fh = fh_create_file (NULL, file_name, NULL, fh_default_properties ()); + + driver = f->create (fh, device_type, options); + if (driver != NULL) + { + const struct string_map_node *node; + const char *key; + + STRING_MAP_FOR_EACH_KEY (key, node, options) + msg (MW, _("%s: unknown option `%s'"), file_name, key); + } + string_map_clear (options); + + free (file_name); + free (format); + free (device_string); + + return driver; +} + +void +output_driver_parse_option (const char *option, struct string_map *options) +{ + const char *equals = strchr (option, '='); + if (equals == NULL) + { + error (0, 0, _("%s: output option missing `='"), option); + return; + } + + char *key = xmemdup0 (option, equals - option); + if (string_map_contains (options, key)) + { + error (0, 0, _("%s: output option specified more than once"), key); + free (key); + return; + } + + char *value = xmemdup0 (equals + 1, strlen (equals + 1)); + string_map_insert_nocopy (options, key, value); +} + +char * +output_driver_substitute_heading_vars (const char *src, int page_number) +{ + struct output_engine *e = engine_stack_top (); + struct string dst = DS_EMPTY_INITIALIZER; + ds_extend (&dst, strlen (src)); + for (const char *p = src; *p;) + { + if (!strncmp (p, "&[", 6)) + { + if (page_number != INT_MIN) + { + const char *start = p + 6; + const char *end = strchr (start, ']'); + if (end) + { + const char *value = string_map_find__ (&e->heading_vars, + start, end - start); + if (value) + ds_put_cstr (&dst, value); + else if (ss_equals (ss_buffer (start, end - start), + ss_cstr ("Page"))) + ds_put_format (&dst, "%d", page_number); + p = end + 1; + continue; + } + } + ds_put_cstr (&dst, "&"); + p += 5; + } + else + ds_put_byte (&dst, *p++); + } + return ds_steal_cstr (&dst); +}