read.c File Reference

#include <math.h>
#include <stdbool.h>
#include <stdio.h>
#include <wchar.h>
#include <wctype.h>
#include "memory/consspaceobject.h"
#include "debug.h"
#include "memory/dump.h"
#include "memory/hashmap.h"
#include "arith/integer.h"
#include "ops/intern.h"
#include "io/io.h"
#include "ops/lispops.h"
#include "arith/peano.h"
#include "io/print.h"
#include "arith/ratio.h"
#include "io/read.h"
#include "arith/real.h"
#include "memory/vectorspace.h"

Include dependency graph for read.c:

Go to the source code of this file.

Functions
struct cons_pointer	c_quote (struct cons_pointer arg)
	quote reader macro in C (!)
struct cons_pointer	read (struct stack_frame *frame, struct cons_pointer frame_pointer, struct cons_pointer env, URL_FILE *input)
	Read the next object on this input stream and return a cons_pointer to it.
struct cons_pointer	read_continuation (struct stack_frame *frame, struct cons_pointer frame_pointer, struct cons_pointer env, URL_FILE *input, wint_t initial)
	Read the next object on this input stream and return a cons_pointer to it, treating this initial character as the first character of the object representation.
struct cons_pointer	read_list (struct stack_frame *frame, struct cons_pointer frame_pointer, struct cons_pointer env, URL_FILE *input, wint_t initial)
	Read a list from this input stream, which no longer contains the opening left parenthesis.
struct cons_pointer	read_map (struct stack_frame *frame, struct cons_pointer frame_pointer, struct cons_pointer env, URL_FILE *input, wint_t initial)
struct cons_pointer	read_number (struct stack_frame *frame, struct cons_pointer frame_pointer, URL_FILE *input, wint_t initial, bool seen_period)
	read a number from this input stream, given this initial character.
struct cons_pointer	read_path (URL_FILE *input, wint_t initial, struct cons_pointer q)
	Read a path macro from the stream.
struct cons_pointer	read_string (URL_FILE *input, wint_t initial)
	Read a string.
struct cons_pointer	read_symbol_or_key (URL_FILE *input, uint32_t tag, wint_t initial)

Function Documentation

c_quote()

struct cons_pointer c_quote

(

struct cons_pointer

arg

)

quote reader macro in C (!)

Definition at line 74 of file read.c.

References c_string_to_lisp_symbol(), make_cons(), and NIL.

Referenced by read_continuation().

read()

struct cons_pointer read	(	struct stack_frame *	frame,
		struct cons_pointer	frame_pointer,
		struct cons_pointer	env,
		URL_FILE *	input
	)

Read the next object on this input stream and return a cons_pointer to it.

read the next object on this input stream and return a cons_pointer to it.

Definition at line 559 of file read.c.

References read_continuation(), and url_fgetwc().

Referenced by lisp_read().

read_continuation()

struct cons_pointer read_continuation	(	struct stack_frame *	frame,
		struct cons_pointer	frame_pointer,
		struct cons_pointer	env,
		URL_FILE *	input,
		wint_t	initial
	)

Read the next object on this input stream and return a cons_pointer to it, treating this initial character as the first character of the object representation.

Definition at line 155 of file read.c.

References c_quote(), c_string_to_lisp_string(), debug_dump_object(), DEBUG_IO, debug_print(), KEYTV, LSESSION, make_cons(), make_string(), make_symbol_or_key(), NIL, nilp, read_continuation(), read_list(), read_map(), read_number(), read_path(), read_string(), read_symbol_or_key(), SYMBOLTV, throw_exception(), url_feof(), url_fgetwc(), and url_ungetwc().

Referenced by read(), read_continuation(), read_list(), and read_map().

read_list()

struct cons_pointer read_list	(	struct stack_frame *	frame,
		struct cons_pointer	frame_pointer,
		struct cons_pointer	env,
		URL_FILE *	input,
		wint_t	initial
	)

Read a list from this input stream, which no longer contains the opening left parenthesis.

Definition at line 401 of file read.c.

References c_car(), DEBUG_IO, debug_print(), debug_printf(), LPERIOD, make_cons(), NIL, read_continuation(), read_list(), and url_fgetwc().

Referenced by read_continuation(), and read_list().

read_map()

struct cons_pointer read_map	(	struct stack_frame *	frame,
		struct cons_pointer	frame_pointer,
		struct cons_pointer	env,
		URL_FILE *	input,
		wint_t	initial
	)

Definition at line 441 of file read.c.

References DFLT_HASHMAP_BUCKETS, eval_form(), hashmap_put(), LCBRACE, LCOMMA, make_hashmap(), NIL, pointer_to_vso, read_continuation(), TRUE, and url_fgetwc().

Referenced by read_continuation().

read_number()

struct cons_pointer read_number	(	struct stack_frame *	frame,
		struct cons_pointer	frame_pointer,
		URL_FILE *	input,
		wint_t	initial,
		bool	seen_period
	)

read a number from this input stream, given this initial character.

Todo:

Need to do a lot of inc_ref and dec_ref, to make sure the garbage is collected.

Definition at line 288 of file read.c.

References acquire_integer(), add_integers(), c_string_to_lisp_string(), debug_dump_object(), DEBUG_IO, debug_print(), debug_print_object(), debug_printf(), dec_ref(), inc_ref(), integerp, LCOMMA, LPERIOD, LSLASH, make_ratio(), make_real(), multiply_integers(), negative(), NIL, nilp, throw_exception(), to_long_double(), url_fgetwc(), and url_ungetwc().

Referenced by read_continuation().

read_path()

struct cons_pointer read_path	(	URL_FILE *	input,
		wint_t	initial,
		struct cons_pointer	q
	)

Read a path macro from the stream.

A path macro is expected to be

1. optionally a leading character such as '/' or '$', followed by
2. one or more keywords with leading colons (':') but no intervening spaces; or
3. one or more symbols separated by slashes; or
4. keywords (with leading colons) interspersed with symbols (prefixed by slashes).

Definition at line 86 of file read.c.

References c_car(), c_cdr(), c_string_to_lisp_symbol(), dec_ref(), KEYTV, LSESSION, make_cons(), NIL, nilp, read_symbol_or_key(), SYMBOLTV, url_feof(), url_fgetwc(), and url_ungetwc().

Referenced by read_continuation().

read_string()

struct cons_pointer read_string	(	URL_FILE *	input,
		wint_t	initial
	)

Read a string.

This means either a string delimited by double quotes (is_quoted == true), in which case it may contain whitespace but may not contain a double quote character (unless escaped), or one not so delimited in which case it may not contain whitespace (unless escaped) but may contain a double quote character (probably not a good idea!)

Definition at line 484 of file read.c.

References make_string(), NIL, read_string(), and url_fgetwc().

Referenced by read_continuation(), and read_string().

read_symbol_or_key()

struct cons_pointer read_symbol_or_key	(	URL_FILE *	input,
		uint32_t	tag,
		wint_t	initial
	)

Definition at line 507 of file read.c.

References debug_dump_object(), DEBUG_IO, debug_print(), make_symbol_or_key(), NIL, read_symbol_or_key(), url_fgetwc(), and url_ungetwc().

Referenced by read_continuation(), read_path(), and read_symbol_or_key().