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#include <string.h>
#include <isl_int.h>
#include <isl/id.h>
#include <isl/id_to_id.h>
#include <isl_printer_private.h>
static __isl_give isl_printer *file_start_line(__isl_take isl_printer *p)
{
fprintf(p->file, "%s%*s%s", p->indent_prefix ? p->indent_prefix : "",
p->indent, "", p->prefix ? p->prefix : "");
return p;
}
static __isl_give isl_printer *file_end_line(__isl_take isl_printer *p)
{
fprintf(p->file, "%s\n", p->suffix ? p->suffix : "");
return p;
}
static __isl_give isl_printer *file_flush(__isl_take isl_printer *p)
{
fflush(p->file);
return p;
}
static __isl_give isl_printer *file_print_str(__isl_take isl_printer *p,
const char *s)
{
fprintf(p->file, "%s", s);
return p;
}
static __isl_give isl_printer *file_print_double(__isl_take isl_printer *p,
double d)
{
fprintf(p->file, "%g", d);
return p;
}
static __isl_give isl_printer *file_print_int(__isl_take isl_printer *p, int i)
{
fprintf(p->file, "%d", i);
return p;
}
static __isl_give isl_printer *file_print_isl_int(__isl_take isl_printer *p, isl_int i)
{
isl_int_print(p->file, i, p->width);
return p;
}
static int grow_buf(__isl_keep isl_printer *p, int extra)
{
int new_size;
char *new_buf;
if (p->buf_size == 0)
return -1;
new_size = ((p->buf_n + extra + 1) * 3) / 2;
new_buf = isl_realloc_array(p->ctx, p->buf, char, new_size);
if (!new_buf) {
p->buf_size = 0;
return -1;
}
p->buf = new_buf;
p->buf_size = new_size;
return 0;
}
static __isl_give isl_printer *str_print(__isl_take isl_printer *p,
const char *s, int len)
{
if (p->buf_n + len + 1 >= p->buf_size && grow_buf(p, len))
goto error;
memcpy(p->buf + p->buf_n, s, len);
p->buf_n += len;
p->buf[p->buf_n] = '\0';
return p;
error:
isl_printer_free(p);
return NULL;
}
static __isl_give isl_printer *str_print_indent(__isl_take isl_printer *p,
int indent)
{
int i;
if (p->buf_n + indent + 1 >= p->buf_size && grow_buf(p, indent))
goto error;
for (i = 0; i < indent; ++i)
p->buf[p->buf_n++] = ' ';
p->buf[p->buf_n] = '\0';
return p;
error:
isl_printer_free(p);
return NULL;
}
static __isl_give isl_printer *str_start_line(__isl_take isl_printer *p)
{
if (p->indent_prefix)
p = str_print(p, p->indent_prefix, strlen(p->indent_prefix));
p = str_print_indent(p, p->indent);
if (p->prefix)
p = str_print(p, p->prefix, strlen(p->prefix));
return p;
}
static __isl_give isl_printer *str_end_line(__isl_take isl_printer *p)
{
if (p->suffix)
p = str_print(p, p->suffix, strlen(p->suffix));
p = str_print(p, "\n", strlen("\n"));
return p;
}
static __isl_give isl_printer *str_flush(__isl_take isl_printer *p)
{
p->buf_n = 0;
p->buf[p->buf_n] = '\0';
return p;
}
static __isl_give isl_printer *str_print_str(__isl_take isl_printer *p,
const char *s)
{
return str_print(p, s, strlen(s));
}
static __isl_give isl_printer *str_print_double(__isl_take isl_printer *p,
double d)
{
int left = p->buf_size - p->buf_n;
int need = snprintf(p->buf + p->buf_n, left, "%g", d);
if (need >= left) {
if (grow_buf(p, need))
goto error;
left = p->buf_size - p->buf_n;
need = snprintf(p->buf + p->buf_n, left, "%g", d);
}
p->buf_n += need;
return p;
error:
isl_printer_free(p);
return NULL;
}
static __isl_give isl_printer *str_print_int(__isl_take isl_printer *p, int i)
{
int left = p->buf_size - p->buf_n;
int need = snprintf(p->buf + p->buf_n, left, "%d", i);
if (need >= left) {
if (grow_buf(p, need))
goto error;
left = p->buf_size - p->buf_n;
need = snprintf(p->buf + p->buf_n, left, "%d", i);
}
p->buf_n += need;
return p;
error:
isl_printer_free(p);
return NULL;
}
static __isl_give isl_printer *str_print_isl_int(__isl_take isl_printer *p,
isl_int i)
{
char *s;
int len;
s = isl_int_get_str(i);
len = strlen(s);
if (len < p->width)
p = str_print_indent(p, p->width - len);
p = str_print(p, s, len);
isl_int_free_str(s);
return p;
}
struct isl_printer_ops {
__isl_give isl_printer *(*start_line)(__isl_take isl_printer *p);
__isl_give isl_printer *(*end_line)(__isl_take isl_printer *p);
__isl_give isl_printer *(*print_double)(__isl_take isl_printer *p,
double d);
__isl_give isl_printer *(*print_int)(__isl_take isl_printer *p, int i);
__isl_give isl_printer *(*print_isl_int)(__isl_take isl_printer *p,
isl_int i);
__isl_give isl_printer *(*print_str)(__isl_take isl_printer *p,
const char *s);
__isl_give isl_printer *(*flush)(__isl_take isl_printer *p);
};
static struct isl_printer_ops file_ops = {
file_start_line,
file_end_line,
file_print_double,
file_print_int,
file_print_isl_int,
file_print_str,
file_flush
};
static struct isl_printer_ops str_ops = {
str_start_line,
str_end_line,
str_print_double,
str_print_int,
str_print_isl_int,
str_print_str,
str_flush
};
__isl_give isl_printer *isl_printer_to_file(isl_ctx *ctx, FILE *file)
{
struct isl_printer *p = isl_calloc_type(ctx, struct isl_printer);
if (!p)
return NULL;
p->ctx = ctx;
isl_ctx_ref(p->ctx);
p->ops = &file_ops;
p->file = file;
p->buf = NULL;
p->buf_n = 0;
p->buf_size = 0;
p->indent = 0;
p->output_format = ISL_FORMAT_ISL;
p->indent_prefix = NULL;
p->prefix = NULL;
p->suffix = NULL;
p->width = 0;
p->yaml_style = ISL_YAML_STYLE_FLOW;
return p;
}
__isl_give isl_printer *isl_printer_to_str(isl_ctx *ctx)
{
struct isl_printer *p = isl_calloc_type(ctx, struct isl_printer);
if (!p)
return NULL;
p->ctx = ctx;
isl_ctx_ref(p->ctx);
p->ops = &str_ops;
p->file = NULL;
p->buf = isl_alloc_array(ctx, char, 256);
if (!p->buf)
goto error;
p->buf_n = 0;
p->buf[0] = '\0';
p->buf_size = 256;
p->indent = 0;
p->output_format = ISL_FORMAT_ISL;
p->indent_prefix = NULL;
p->prefix = NULL;
p->suffix = NULL;
p->width = 0;
p->yaml_style = ISL_YAML_STYLE_FLOW;
return p;
error:
isl_printer_free(p);
return NULL;
}
__isl_null isl_printer *isl_printer_free(__isl_take isl_printer *p)
{
if (!p)
return NULL;
free(p->buf);
free(p->indent_prefix);
free(p->prefix);
free(p->suffix);
free(p->yaml_state);
isl_id_to_id_free(p->notes);
isl_ctx_deref(p->ctx);
free(p);
return NULL;
}
isl_ctx *isl_printer_get_ctx(__isl_keep isl_printer *printer)
{
return printer ? printer->ctx : NULL;
}
FILE *isl_printer_get_file(__isl_keep isl_printer *printer)
{
if (!printer)
return NULL;
if (!printer->file)
isl_die(isl_printer_get_ctx(printer), isl_error_invalid,
"not a file printer", return NULL);
return printer->file;
}
__isl_give isl_printer *isl_printer_set_isl_int_width(__isl_take isl_printer *p,
int width)
{
if (!p)
return NULL;
p->width = width;
return p;
}
__isl_give isl_printer *isl_printer_set_indent(__isl_take isl_printer *p,
int indent)
{
if (!p)
return NULL;
p->indent = indent;
return p;
}
__isl_give isl_printer *isl_printer_indent(__isl_take isl_printer *p,
int indent)
{
if (!p)
return NULL;
p->indent += indent;
if (p->indent < 0)
p->indent = 0;
return p;
}
/* Replace the indent prefix of "p" by "prefix".
*/
__isl_give isl_printer *isl_printer_set_indent_prefix(__isl_take isl_printer *p,
const char *prefix)
{
if (!p)
return NULL;
free(p->indent_prefix);
p->indent_prefix = prefix ? strdup(prefix) : NULL;
return p;
}
__isl_give isl_printer *isl_printer_set_prefix(__isl_take isl_printer *p,
const char *prefix)
{
if (!p)
return NULL;
free(p->prefix);
p->prefix = prefix ? strdup(prefix) : NULL;
return p;
}
__isl_give isl_printer *isl_printer_set_suffix(__isl_take isl_printer *p,
const char *suffix)
{
if (!p)
return NULL;
free(p->suffix);
p->suffix = suffix ? strdup(suffix) : NULL;
return p;
}
__isl_give isl_printer *isl_printer_set_output_format(__isl_take isl_printer *p,
int output_format)
{
if (!p)
return NULL;
p->output_format = output_format;
return p;
}
int isl_printer_get_output_format(__isl_keep isl_printer *p)
{
if (!p)
return -1;
return p->output_format;
}
/* Does "p" have a note with identifier "id"?
*/
isl_bool isl_printer_has_note(__isl_keep isl_printer *p,
__isl_keep isl_id *id)
{
if (!p || !id)
return isl_bool_error;
if (!p->notes)
return isl_bool_false;
return isl_id_to_id_has(p->notes, id);
}
/* Retrieve the note identified by "id" from "p".
* The note is assumed to exist.
*/
__isl_give isl_id *isl_printer_get_note(__isl_keep isl_printer *p,
__isl_take isl_id *id)
{
isl_bool has_note;
has_note = isl_printer_has_note(p, id);
if (has_note < 0)
goto error;
if (!has_note)
isl_die(isl_printer_get_ctx(p), isl_error_invalid,
"no such note", goto error);
return isl_id_to_id_get(p->notes, id);
error:
isl_id_free(id);
return NULL;
}
/* Associate "note" to the identifier "id" in "p",
* replacing the previous note associated to the identifier, if any.
*/
__isl_give isl_printer *isl_printer_set_note(__isl_take isl_printer *p,
__isl_take isl_id *id, __isl_take isl_id *note)
{
if (!p || !id || !note)
goto error;
if (!p->notes) {
p->notes = isl_id_to_id_alloc(isl_printer_get_ctx(p), 1);
if (!p->notes)
goto error;
}
p->notes = isl_id_to_id_set(p->notes, id, note);
if (!p->notes)
return isl_printer_free(p);
return p;
error:
isl_printer_free(p);
isl_id_free(id);
isl_id_free(note);
return NULL;
}
/* Keep track of whether the printing to "p" is being performed from
* an isl_*_dump function as specified by "dump".
*/
__isl_give isl_printer *isl_printer_set_dump(__isl_take isl_printer *p,
int dump)
{
if (!p)
return NULL;
p->dump = dump;
return p;
}
/* Set the YAML style of "p" to "yaml_style" and return the updated printer.
*/
__isl_give isl_printer *isl_printer_set_yaml_style(__isl_take isl_printer *p,
int yaml_style)
{
if (!p)
return NULL;
p->yaml_style = yaml_style;
return p;
}
/* Return the YAML style of "p" or -1 on error.
*/
int isl_printer_get_yaml_style(__isl_keep isl_printer *p)
{
if (!p)
return -1;
return p->yaml_style;
}
/* Push "state" onto the stack of currently active YAML elements and
* return the updated printer.
*/
static __isl_give isl_printer *push_state(__isl_take isl_printer *p,
enum isl_yaml_state state)
{
if (!p)
return NULL;
if (p->yaml_size < p->yaml_depth + 1) {
enum isl_yaml_state *state;
state = isl_realloc_array(p->ctx, p->yaml_state,
enum isl_yaml_state, p->yaml_depth + 1);
if (!state)
return isl_printer_free(p);
p->yaml_state = state;
p->yaml_size = p->yaml_depth + 1;
}
p->yaml_state[p->yaml_depth] = state;
p->yaml_depth++;
return p;
}
/* Remove the innermost active YAML element from the stack and
* return the updated printer.
*/
static __isl_give isl_printer *pop_state(__isl_take isl_printer *p)
{
if (!p)
return NULL;
p->yaml_depth--;
return p;
}
/* Set the state of the innermost active YAML element to "state" and
* return the updated printer.
*/
static __isl_give isl_printer *update_state(__isl_take isl_printer *p,
enum isl_yaml_state state)
{
if (!p)
return NULL;
if (p->yaml_depth < 1)
isl_die(isl_printer_get_ctx(p), isl_error_invalid,
"not in YAML construct", return isl_printer_free(p));
p->yaml_state[p->yaml_depth - 1] = state;
return p;
}
/* Return the state of the innermost active YAML element.
* Return isl_yaml_none if we are not inside any YAML element.
*/
static enum isl_yaml_state current_state(__isl_keep isl_printer *p)
{
if (!p)
return isl_yaml_none;
if (p->yaml_depth < 1)
return isl_yaml_none;
return p->yaml_state[p->yaml_depth - 1];
}
/* If we are printing a YAML document and we are at the start of an element,
* print whatever is needed before we can print the actual element and
* keep track of the fact that we are now printing the element.
* If "eol" is set, then whatever we print is going to be the last
* thing that gets printed on this line.
*
* If we are about the print the first key of a mapping, then nothing
* extra needs to be printed. For any other key, however, we need
* to either move to the next line (in block format) or print a comma
* (in flow format).
* Before printing a value in a mapping, we need to print a colon.
*
* For sequences, in flow format, we only need to print a comma
* for each element except the first.
* In block format, before the first element in the sequence,
* we move to a new line, print a dash and increase the indentation.
* Before any other element, we print a dash on a new line,
* temporarily moving the indentation back.
*/
static __isl_give isl_printer *enter_state(__isl_take isl_printer *p,
int eol)
{
enum isl_yaml_state state;
if (!p)
return NULL;
state = current_state(p);
if (state == isl_yaml_mapping_val_start) {
if (eol)
p = p->ops->print_str(p, ":");
else
p = p->ops->print_str(p, ": ");
p = update_state(p, isl_yaml_mapping_val);
} else if (state == isl_yaml_mapping_first_key_start) {
p = update_state(p, isl_yaml_mapping_key);
} else if (state == isl_yaml_mapping_key_start) {
if (p->yaml_style == ISL_YAML_STYLE_FLOW)
p = p->ops->print_str(p, ", ");
else {
p = p->ops->end_line(p);
p = p->ops->start_line(p);
}
p = update_state(p, isl_yaml_mapping_key);
} else if (state == isl_yaml_sequence_first_start) {
if (p->yaml_style != ISL_YAML_STYLE_FLOW) {
p = p->ops->end_line(p);
p = p->ops->start_line(p);
p = p->ops->print_str(p, "- ");
p = isl_printer_indent(p, 2);
}
p = update_state(p, isl_yaml_sequence);
} else if (state == isl_yaml_sequence_start) {
if (p->yaml_style == ISL_YAML_STYLE_FLOW)
p = p->ops->print_str(p, ", ");
else {
p = p->ops->end_line(p);
p = isl_printer_indent(p, -2);
p = p->ops->start_line(p);
p = p->ops->print_str(p, "- ");
p = isl_printer_indent(p, 2);
}
p = update_state(p, isl_yaml_sequence);
}
return p;
}
__isl_give isl_printer *isl_printer_print_str(__isl_take isl_printer *p,
const char *s)
{
if (!p)
return NULL;
if (!s)
return isl_printer_free(p);
p = enter_state(p, 0);
if (!p)
return NULL;
return p->ops->print_str(p, s);
}
__isl_give isl_printer *isl_printer_print_double(__isl_take isl_printer *p,
double d)
{
p = enter_state(p, 0);
if (!p)
return NULL;
return p->ops->print_double(p, d);
}
__isl_give isl_printer *isl_printer_print_int(__isl_take isl_printer *p, int i)
{
p = enter_state(p, 0);
if (!p)
return NULL;
return p->ops->print_int(p, i);
}
__isl_give isl_printer *isl_printer_print_isl_int(__isl_take isl_printer *p,
isl_int i)
{
p = enter_state(p, 0);
if (!p)
return NULL;
return p->ops->print_isl_int(p, i);
}
__isl_give isl_printer *isl_printer_start_line(__isl_take isl_printer *p)
{
if (!p)
return NULL;
return p->ops->start_line(p);
}
__isl_give isl_printer *isl_printer_end_line(__isl_take isl_printer *p)
{
if (!p)
return NULL;
return p->ops->end_line(p);
}
/* Return a copy of the string constructed by the string printer "printer".
*/
__isl_give char *isl_printer_get_str(__isl_keep isl_printer *printer)
{
if (!printer)
return NULL;
if (printer->ops != &str_ops)
isl_die(isl_printer_get_ctx(printer), isl_error_invalid,
"isl_printer_get_str can only be called on a string "
"printer", return NULL);
if (!printer->buf)
return NULL;
return strdup(printer->buf);
}
__isl_give isl_printer *isl_printer_flush(__isl_take isl_printer *p)
{
if (!p)
return NULL;
return p->ops->flush(p);
}
/* Start a YAML mapping and push a new state to reflect that we
* are about to print the first key in a mapping.
*
* In flow style, print the opening brace.
* In block style, move to the next line with an increased indentation,
* except if this is the outer mapping or if we are inside a sequence
* (in which case we have already increased the indentation and we want
* to print the first key on the same line as the dash).
*/
__isl_give isl_printer *isl_printer_yaml_start_mapping(
__isl_take isl_printer *p)
{
enum isl_yaml_state state;
if (!p)
return NULL;
p = enter_state(p, p->yaml_style == ISL_YAML_STYLE_BLOCK);
if (!p)
return NULL;
state = current_state(p);
if (p->yaml_style == ISL_YAML_STYLE_FLOW)
p = p->ops->print_str(p, "{ ");
else if (state != isl_yaml_none && state != isl_yaml_sequence) {
p = p->ops->end_line(p);
p = isl_printer_indent(p, 2);
p = p->ops->start_line(p);
}
p = push_state(p, isl_yaml_mapping_first_key_start);
return p;
}
/* Finish a YAML mapping and pop it from the state stack.
*
* In flow style, print the closing brace.
*
* In block style, first check if we are still in the
* isl_yaml_mapping_first_key_start state. If so, we have not printed
* anything yet, so print "{}" to indicate an empty mapping.
* If we increased the indentation in isl_printer_yaml_start_mapping,
* then decrease it again.
* If this is the outer mapping then print a newline.
*/
__isl_give isl_printer *isl_printer_yaml_end_mapping(
__isl_take isl_printer *p)
{
enum isl_yaml_state state;
state = current_state(p);
p = pop_state(p);
if (!p)
return NULL;
if (p->yaml_style == ISL_YAML_STYLE_FLOW)
return p->ops->print_str(p, " }");
if (state == isl_yaml_mapping_first_key_start)
p = p->ops->print_str(p, "{}");
if (!p)
return NULL;
state = current_state(p);
if (state != isl_yaml_none && state != isl_yaml_sequence)
p = isl_printer_indent(p, -2);
if (state == isl_yaml_none)
p = p->ops->end_line(p);
return p;
}
/* Start a YAML sequence and push a new state to reflect that we
* are about to print the first element in a sequence.
*
* In flow style, print the opening bracket.
*/
__isl_give isl_printer *isl_printer_yaml_start_sequence(
__isl_take isl_printer *p)
{
if (!p)
return NULL;
p = enter_state(p, p->yaml_style == ISL_YAML_STYLE_BLOCK);
p = push_state(p, isl_yaml_sequence_first_start);
if (!p)
return NULL;
if (p->yaml_style == ISL_YAML_STYLE_FLOW)
p = p->ops->print_str(p, "[ ");
return p;
}
/* Finish a YAML sequence and pop it from the state stack.
*
* In flow style, print the closing bracket.
*
* In block style, check if we are still in the
* isl_yaml_sequence_first_start state. If so, we have not printed
* anything yet, so print "[]" or " []" to indicate an empty sequence.
* We print the extra space when we instructed enter_state not
* to print a space at the end of the line.
* Otherwise, undo the increase in indentation performed by
* enter_state when moving away from the isl_yaml_sequence_first_start
* state.
* If this is the outer sequence then print a newline.
*/
__isl_give isl_printer *isl_printer_yaml_end_sequence(
__isl_take isl_printer *p)
{
enum isl_yaml_state state, up;
state = current_state(p);
p = pop_state(p);
if (!p)
return NULL;
if (p->yaml_style == ISL_YAML_STYLE_FLOW)
return p->ops->print_str(p, " ]");
up = current_state(p);
if (state == isl_yaml_sequence_first_start) {
if (up == isl_yaml_mapping_val)
p = p->ops->print_str(p, " []");
else
p = p->ops->print_str(p, "[]");
} else {
p = isl_printer_indent(p, -2);
}
if (!p)
return NULL;
state = current_state(p);
if (state == isl_yaml_none)
p = p->ops->end_line(p);
return p;
}
/* Mark the fact that the current element is finished and that
* the next output belongs to the next element.
* In particular, if we are printing a key, then prepare for
* printing the subsequent value. If we are printing a value,
* prepare for printing the next key. If we are printing an
* element in a sequence, prepare for printing the next element.
*/
__isl_give isl_printer *isl_printer_yaml_next(__isl_take isl_printer *p)
{
enum isl_yaml_state state;
if (!p)
return NULL;
if (p->yaml_depth < 1)
isl_die(isl_printer_get_ctx(p), isl_error_invalid,
"not in YAML construct", return isl_printer_free(p));
state = current_state(p);
if (state == isl_yaml_mapping_key)
state = isl_yaml_mapping_val_start;
else if (state == isl_yaml_mapping_val)
state = isl_yaml_mapping_key_start;
else if (state == isl_yaml_sequence)
state = isl_yaml_sequence_start;
p = update_state(p, state);
return p;
}
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