/src/php-src/ext/standard/formatted_print.c

Source
/*
   +----------------------------------------------------------------------+
   | Copyright © The PHP Group and Contributors.                          |
   +----------------------------------------------------------------------+
   | This source file is subject to the Modified BSD License that is      |
   | bundled with this package in the file LICENSE, and is available      |
   | through the World Wide Web at <https://www.php.net/license/>.        |
   |                                                                      |
   | SPDX-License-Identifier: BSD-3-Clause                                |
   +----------------------------------------------------------------------+
   | Author: Stig Sæther Bakken <ssb@php.net>                             |
   +----------------------------------------------------------------------+
 */

#include <math.h>       /* modf() */
#include "php.h"
#include "zend_execute.h"

#include <locale.h>
#ifdef ZTS
#include "ext/standard/php_string.h" /* for localeconv_decimal_point() */
#define LCONV_DECIMAL_POINT localeconv_decimal_point()
#else
#define LCONV_DECIMAL_POINT (*lconv->decimal_point)
#endif

#define ALIGN_LEFT 0
#define ALIGN_RIGHT 1
#define ADJ_WIDTH 1
#define ADJ_PRECISION 2
#define NUM_BUF_SIZE 500
#define FLOAT_PRECISION 6
#define MAX_FLOAT_PRECISION 53

#if 0
/* trick to control varargs functions through cpp */
# define PRINTF_DEBUG(arg) php_printf arg
#else
# define PRINTF_DEBUG(arg)
#endif

static const char hexchars[] = "0123456789abcdef";
static const char HEXCHARS[] = "0123456789ABCDEF";

/* php_spintf_appendchar() {{{ */
inline static void
php_sprintf_appendchar(zend_string **buffer, size_t *pos, char add)
{
  if ((*pos + 1) >= ZSTR_LEN(*buffer)) {
    PRINTF_DEBUG(("%s(): ereallocing buffer to %zu bytes\n", get_active_function_name(), ZSTR_LEN(*buffer)));
    *buffer = zend_string_extend(*buffer, ZSTR_LEN(*buffer) << 1, 0);
  }
  PRINTF_DEBUG(("sprintf: appending '%c', pos=%zu\n", add, *pos));
  ZSTR_VAL(*buffer)[(*pos)++] = add;
}
/* }}} */

/* php_spintf_appendchar() {{{ */
inline static void
php_sprintf_appendchars(zend_string **buffer, size_t *pos, char *add, size_t len)
{
  if ((*pos + len) >= ZSTR_LEN(*buffer)) {
    size_t nlen = ZSTR_LEN(*buffer);

    PRINTF_DEBUG(("%s(): ereallocing buffer to %zu bytes\n", get_active_function_name(), ZSTR_LEN(*buffer)));
    do {
      nlen = nlen << 1;
    } while ((*pos + len) >= nlen);
    *buffer = zend_string_extend(*buffer, nlen, 0);
  }
  PRINTF_DEBUG(("sprintf: appending \"%s\", pos=%zu\n", add, *pos));
  memcpy(ZSTR_VAL(*buffer) + (*pos), add, len);
  *pos += len;
}
/* }}} */

/* php_spintf_appendstring() {{{ */
inline static void
php_sprintf_appendstring(zend_string **buffer, size_t *pos, char *add,
               size_t min_width, size_t max_width, char padding,
               size_t alignment, size_t len, bool neg, int expprec, int always_sign)
{
  size_t npad;
  size_t req_size;
  size_t copy_len;
  size_t m_width;

  copy_len = (expprec ? MIN(max_width, len) : len);
  npad = (min_width < copy_len) ? 0 : min_width - copy_len;

  PRINTF_DEBUG(("sprintf: appendstring(%p, %zu, %zu, \"%s\", %zu, '%c', %zu)\n",
          *buffer, *pos, ZSTR_LEN(*buffer), add, min_width, padding, alignment));
  m_width = MAX(min_width, copy_len);

  if(m_width > INT_MAX - *pos - 1) {
    zend_error_noreturn(E_ERROR, "Field width %zd is too long", m_width);
  }

  req_size = *pos + m_width + 1;

  if (req_size > ZSTR_LEN(*buffer)) {
    size_t size = ZSTR_LEN(*buffer);
    while (req_size > size) {
      if (size > SIZE_MAX/2) {
        zend_error_noreturn(E_ERROR, "Field width %zd is too long", req_size);
      }
      size <<= 1;
    }
    PRINTF_DEBUG(("sprintf ereallocing buffer to %zu bytes\n", size));
    *buffer = zend_string_extend(*buffer, size, 0);
  }
  if (alignment == ALIGN_RIGHT) {
    if ((neg || always_sign) && padding=='0') {
      ZSTR_VAL(*buffer)[(*pos)++] = (neg) ? '-' : '+';
      add++;
      len--;
      copy_len--;
    }
    while (npad-- > 0) {
      ZSTR_VAL(*buffer)[(*pos)++] = padding;
    }
  }
  PRINTF_DEBUG(("sprintf: appending \"%s\"\n", add));
  memcpy(&ZSTR_VAL(*buffer)[*pos], add, copy_len + 1);
  *pos += copy_len;
  if (alignment == ALIGN_LEFT) {
    while (npad--) {
      ZSTR_VAL(*buffer)[(*pos)++] = padding;
    }
  }
}
/* }}} */

/* php_spintf_appendint() {{{ */
inline static void
php_sprintf_appendint(zend_string **buffer, size_t *pos, zend_long number,
            size_t width, char padding, size_t alignment,
            int always_sign)
{
  char numbuf[NUM_BUF_SIZE];
  zend_ulong magn, nmagn;
  unsigned int i = NUM_BUF_SIZE - 1, neg = 0;

  PRINTF_DEBUG(("sprintf: appendint(%p, %zu, %zu, " ZEND_LONG_FMT ", %zu, '%c', %zu)\n",
          *buffer, *pos, ZSTR_LEN(*buffer), number, width, padding, alignment));
  if (number < 0) {
    neg = 1;
    magn = ((zend_ulong) -(number + 1)) + 1;
  } else {
    magn = (zend_ulong) number;
  }

  /* Can't right-pad 0's on integers */
  if(alignment==0 && padding=='0') padding=' ';

  numbuf[i] = '\0';

  do {
    nmagn = magn / 10;

    numbuf[--i] = (unsigned char)(magn - (nmagn * 10)) + '0';
    magn = nmagn;
  }
  while (magn > 0 && i > 1);
  if (neg) {
    numbuf[--i] = '-';
  } else if (always_sign) {
    numbuf[--i] = '+';
  }
  PRINTF_DEBUG(("sprintf: appending " ZEND_LONG_FMT " as \"%s\", i=%u\n",
          number, &numbuf[i], i));
  php_sprintf_appendstring(buffer, pos, &numbuf[i], width, 0,
               padding, alignment, (NUM_BUF_SIZE - 1) - i,
               neg, 0, always_sign);
}
/* }}} */

/* php_spintf_appenduint() {{{ */
inline static void
php_sprintf_appenduint(zend_string **buffer, size_t *pos,
             zend_ulong number,
             size_t width, char padding, size_t alignment)
{
  char numbuf[NUM_BUF_SIZE];
  zend_ulong magn, nmagn;
  unsigned int i = NUM_BUF_SIZE - 1;

  PRINTF_DEBUG(("sprintf: appenduint(%p, %zu, %zu, " ZEND_LONG_FMT ", %zu, '%c', %zu)\n",
          *buffer, *pos, ZSTR_LEN(*buffer), number, width, padding, alignment));
  magn = (zend_ulong) number;

  /* Can't right-pad 0's on integers */
  if (alignment == 0 && padding == '0') padding = ' ';

  numbuf[i] = '\0';

  do {
    nmagn = magn / 10;

    numbuf[--i] = (unsigned char)(magn - (nmagn * 10)) + '0';
    magn = nmagn;
  } while (magn > 0 && i > 0);

  PRINTF_DEBUG(("sprintf: appending " ZEND_LONG_FMT " as \"%s\", i=%d\n", number, &numbuf[i], i));
  php_sprintf_appendstring(buffer, pos, &numbuf[i], width, 0,
               padding, alignment, (NUM_BUF_SIZE - 1) - i, /* neg */ false, 0, 0);
}
/* }}} */

/* php_spintf_appenddouble() {{{ */
inline static void
php_sprintf_appenddouble(zend_string **buffer, size_t *pos,
             double number,
             size_t width, char padding,
             size_t alignment, int precision,
             int adjust, char fmt,
             int always_sign
            )
{
  char num_buf[NUM_BUF_SIZE];
  char *s = NULL;
  size_t s_len = 0;
  bool is_negative = false;
#ifndef ZTS
  struct lconv *lconv;
#endif

  PRINTF_DEBUG(("sprintf: appenddouble(%p, %zu, %zu, %f, %zu, '%c', %zu, %c)\n",
          *buffer, *pos, ZSTR_LEN(*buffer), number, width, padding, alignment, fmt));
  if ((adjust & ADJ_PRECISION) == 0) {
    precision = FLOAT_PRECISION;
  } else if (precision > MAX_FLOAT_PRECISION) {
    php_error_docref(NULL, E_NOTICE, "Requested precision of %d digits was truncated to PHP maximum of %d digits", precision, MAX_FLOAT_PRECISION);
    precision = MAX_FLOAT_PRECISION;
  }

  if (zend_isnan(number)) {
    is_negative = (number<0);
    php_sprintf_appendstring(buffer, pos, "NaN", 3, 0, padding,
                 alignment, 3, is_negative, 0, always_sign);
    return;
  }

  if (zend_isinf(number)) {
    is_negative = (number<0);   
    char *str = is_negative ? "-INF" : "INF";
    php_sprintf_appendstring(buffer, pos, str, strlen(str), 0, padding,
                alignment, strlen(str), is_negative, 0, always_sign);
    return;
  }

  switch (fmt) {
    case 'e':
    case 'E':
    case 'f':
    case 'F':
#ifndef ZTS
      lconv = localeconv();
#endif
      s = php_conv_fp((fmt == 'f')?'F':fmt, number, 0, precision,
            (fmt == 'f')?LCONV_DECIMAL_POINT:'.',
            &is_negative, &num_buf[1], &s_len);
      if (is_negative) {
        num_buf[0] = '-';
        s = num_buf;
        s_len++;
      } else if (always_sign) {
        num_buf[0] = '+';
        s = num_buf;
        s_len++;
      }
      break;

    case 'g':
    case 'G':
    case 'h':
    case 'H':
    {
      if (precision == 0)
        precision = 1;

      char decimal_point = '.';
      if (fmt == 'g' || fmt == 'G') {
#ifndef ZTS
        lconv = localeconv();
#endif
        decimal_point = LCONV_DECIMAL_POINT;
      }

      char exp_char = fmt == 'G' || fmt == 'H' ? 'E' : 'e';
      /* We use &num_buf[ 1 ], so that we have room for the sign. */
      s = zend_gcvt(number, precision, decimal_point, exp_char, &num_buf[1]);
      is_negative = false;
      if (*s == '-') {
        is_negative = true;
        s = &num_buf[1];
      } else if (always_sign) {
        num_buf[0] = '+';
        s = num_buf;
      }

      s_len = strlen(s);
      break;
    }
  }

  php_sprintf_appendstring(buffer, pos, s, width, 0, padding,
               alignment, s_len, is_negative, 0, always_sign);
}
/* }}} */

/* php_spintf_appendd2n() {{{ */
inline static void
php_sprintf_append2n(zend_string **buffer, size_t *pos, zend_long number,
           size_t width, char padding, size_t alignment, int n,
           const char *chartable, int expprec)
{
  char numbuf[NUM_BUF_SIZE];
  zend_ulong num;
  zend_ulong  i = NUM_BUF_SIZE - 1;
  int andbits = (1 << n) - 1;

  PRINTF_DEBUG(("sprintf: append2n(%p, %zu, %zu, " ZEND_LONG_FMT ", %zu, '%c', %zu, %d, %p)\n",
          *buffer, *pos, ZSTR_LEN(*buffer), number, width, padding, alignment, n,
          chartable));
  PRINTF_DEBUG(("sprintf: append2n 2^%d andbits=%x\n", n, andbits));

  num = (zend_ulong) number;
  numbuf[i] = '\0';

  do {
    numbuf[--i] = chartable[(num & andbits)];
    num >>= n;
  }
  while (num > 0);

  php_sprintf_appendstring(buffer, pos, &numbuf[i], width, 0,
               padding, alignment, (NUM_BUF_SIZE - 1) - i,
               /* neg */ false, expprec, 0);
}
/* }}} */

/* php_spintf_getnumber() {{{ */
inline static int
php_sprintf_getnumber(char **buffer, size_t *len)
{
  char *endptr;
  zend_long num = ZEND_STRTOL(*buffer, &endptr, 10);
  size_t i;

  if (endptr != NULL) {
    i = (endptr - *buffer);
    *len -= i;
    *buffer = endptr;
  }
  PRINTF_DEBUG(("sprintf_getnumber: number was %zu bytes long\n", i));

  if (num >= INT_MAX || num < 0) {
    return -1;
  } else {
    return (int) num;
  }
}
/* }}} */

#define ARG_NUM_NEXT -1
#define ARG_NUM_INVALID -2

int php_sprintf_get_argnum(char **format, size_t *format_len) {
  char *temppos = *format;
  while (isdigit((unsigned char)*temppos)) temppos++;
  if (*temppos != '$') {
    return ARG_NUM_NEXT;
  }

  if (UNEXPECTED(temppos == *format)) {
    zend_value_error("Argument number specifier must not be empty");
    return ARG_NUM_INVALID;
  }

  int argnum = php_sprintf_getnumber(format, format_len);
  if (argnum <= 0) {
    zend_value_error("Argument number specifier must be greater than zero and less than %d", INT_MAX);
    return ARG_NUM_INVALID;
  }

  (*format)++;  /* skip the '$' */
  (*format_len)--;
  return argnum - 1;
}

/* php_formatted_print() {{{
 * New sprintf implementation for PHP.
 *
 * Modifiers:
 *
 *  " "   pad integers with spaces
 *  "-"   left adjusted field
 *   n    field size
 *  "."n  precision (floats only)
 *  "+"   Always place a sign (+ or -) in front of a number
 *
 * Type specifiers:
 *
 *  "%"   literal "%", modifiers are ignored.
 *  "b"   integer argument is printed as binary
 *  "c"   integer argument is printed as a single character
 *  "d"   argument is an integer
 *  "f"   the argument is a float
 *  "o"   integer argument is printed as octal
 *  "s"   argument is a string
 *  "x"   integer argument is printed as lowercase hexadecimal
 *  "X"   integer argument is printed as uppercase hexadecimal
 *
 * nb_additional_parameters is used for throwing errors:
 *  - -1: ValueError is thrown (for vsprintf where args originates from an array)
 *  - 0 or more: ArgumentCountError is thrown
 */
static zend_string *
php_formatted_print(char *format, size_t format_len, zval *args, int argc, int nb_additional_parameters)
{
  size_t size = 240, outpos = 0;
  int alignment, currarg, adjusting, argnum, width, precision;
  char *temppos, padding;
  zend_string *result;
  int always_sign;
  int max_missing_argnum = -1;

  /* For debugging */
  const char *format_orig = format;
  ZEND_IGNORE_VALUE(format_orig);

  result = zend_string_alloc(size, 0);

  currarg = 0;
  argnum = 0;

  while (format_len) {
    int expprec;
    zval *tmp;

    temppos = memchr(format, '%', format_len);
    if (!temppos) {
      php_sprintf_appendchars(&result, &outpos, format, format_len);
      break;
    } else if (temppos != format) {
      php_sprintf_appendchars(&result, &outpos, format, temppos - format);
      format_len -= temppos - format;
      format = temppos;
    }
    format++;     /* skip the '%' */
    format_len--;

    if (*format == '%') {
      php_sprintf_appendchar(&result, &outpos, '%');
      format++;
      format_len--;
    } else {
      /* starting a new format specifier, reset variables */
      alignment = ALIGN_RIGHT;
      adjusting = 0;
      padding = ' ';
      always_sign = 0;
      expprec = 0;

      PRINTF_DEBUG(("sprintf: first looking at '%c', inpos=%zu\n",
              *format, format - format_orig));
      if (isalpha((unsigned char)*format)) {
        width = precision = 0;
        argnum = ARG_NUM_NEXT;
      } else {
        /* first look for argnum */
        argnum = php_sprintf_get_argnum(&format, &format_len);
        if (argnum == ARG_NUM_INVALID) {
          goto fail;
        }

        /* after argnum comes modifiers */
        PRINTF_DEBUG(("sprintf: looking for modifiers\n"
                "sprintf: now looking at '%c', inpos=%zu\n",
                *format, format - format_orig));
        for (;; format++, format_len--) {
          if (*format == ' ' || *format == '0') {
            padding = *format;
          } else if (*format == '-') {
            alignment = ALIGN_LEFT;
            /* space padding, the default */
          } else if (*format == '+') {
            always_sign = 1;
          } else if (*format == '\'') {
            if (format_len > 1) {
              format++;
              format_len--;
              padding = *format;
            } else {
              zend_value_error("Missing padding character");
              goto fail;
            }
          } else {
            PRINTF_DEBUG(("sprintf: end of modifiers\n"));
            break;
          }
        }
        PRINTF_DEBUG(("sprintf: padding='%c'\n", padding));
        PRINTF_DEBUG(("sprintf: alignment=%s\n",
                (alignment == ALIGN_LEFT) ? "left" : "right"));


        /* after modifiers comes width */
        if (*format == '*') {
          format++;
          format_len--;

          int width_argnum = php_sprintf_get_argnum(&format, &format_len);
          if (width_argnum == ARG_NUM_INVALID) {
            goto fail;
          }
          if (width_argnum == ARG_NUM_NEXT) {
            width_argnum = currarg++;
          }
          if (width_argnum >= argc) {
            max_missing_argnum = MAX(max_missing_argnum, width_argnum);
            continue;
          }
          tmp = &args[width_argnum];
          ZVAL_DEREF(tmp);
          if (Z_TYPE_P(tmp) != IS_LONG) {
            zend_value_error("Width must be an integer");
            goto fail;
          }
          if (Z_LVAL_P(tmp) < 0 || Z_LVAL_P(tmp) > INT_MAX) {
            zend_value_error("Width must be between 0 and %d", INT_MAX);
            goto fail;
          }
          width = Z_LVAL_P(tmp);
          adjusting |= ADJ_WIDTH;
        } else if (isdigit((unsigned char)*format)) {
          PRINTF_DEBUG(("sprintf: getting width\n"));
          if ((width = php_sprintf_getnumber(&format, &format_len)) < 0) {
            zend_value_error("Width must be between 0 and %d", INT_MAX);
            goto fail;
          }
          adjusting |= ADJ_WIDTH;
        } else {
          width = 0;
        }
        PRINTF_DEBUG(("sprintf: width=%d\n", width));

        /* after width and argnum comes precision */
        if (*format == '.') {
          format++;
          format_len--;
          PRINTF_DEBUG(("sprintf: getting precision\n"));
          if (*format == '*') {
            format++;
            format_len--;

            int prec_argnum = php_sprintf_get_argnum(&format, &format_len);
            if (prec_argnum == ARG_NUM_INVALID) {
              goto fail;
            }
            if (prec_argnum == ARG_NUM_NEXT) {
              prec_argnum = currarg++;
            }
            if (prec_argnum >= argc) {
              max_missing_argnum = MAX(max_missing_argnum, prec_argnum);
              continue;
            }
            tmp = &args[prec_argnum];
            ZVAL_DEREF(tmp);
            if (Z_TYPE_P(tmp) != IS_LONG) {
              zend_value_error("Precision must be an integer");
              goto fail;
            }
            if (Z_LVAL_P(tmp) < -1 || Z_LVAL_P(tmp) > INT_MAX) {
              zend_value_error("Precision must be between -1 and %d", INT_MAX);
              goto fail;
            }
            precision = Z_LVAL_P(tmp);
            adjusting |= ADJ_PRECISION;
            expprec = 1;
          } else if (isdigit((unsigned char)*format)) {
            if ((precision = php_sprintf_getnumber(&format, &format_len)) < 0) {
              zend_value_error("Precision must be between 0 and %d", INT_MAX);
              goto fail;
            }
            adjusting |= ADJ_PRECISION;
            expprec = 1;
          } else {
            precision = 0;
            adjusting |= ADJ_PRECISION;
          }
        } else {
          precision = 0;
        }
        PRINTF_DEBUG(("sprintf: precision=%d\n", precision));
      }

      if (*format == 'l') {
        format++;
        format_len--;
      }
      PRINTF_DEBUG(("sprintf: format character='%c'\n", *format));

      if (argnum == ARG_NUM_NEXT) {
        argnum = currarg++;
      }
      if (argnum >= argc) {
        max_missing_argnum = MAX(max_missing_argnum, argnum);
        continue;
      }

      if (expprec && precision == -1
          && *format != 'g' && *format != 'G' && *format != 'h' && *format != 'H') {
        zend_value_error("Precision -1 is only supported for %%g, %%G, %%h and %%H");
        goto fail;
      }

      /* now we expect to find a type specifier */
      tmp = &args[argnum];
      switch (*format) {
        case 's': {
          zend_string *t;
          zend_string *str = zval_get_tmp_string(tmp, &t);
          php_sprintf_appendstring(&result, &outpos,
                       ZSTR_VAL(str),
                       width, precision, padding,
                       alignment,
                       ZSTR_LEN(str),
                       /* neg */ false, expprec, 0);
          zend_tmp_string_release(t);
          break;
        }

        case 'd':
          php_sprintf_appendint(&result, &outpos,
                      zval_get_long(tmp),
                      width, padding, alignment,
                      always_sign);
          break;

        case 'u':
          php_sprintf_appenduint(&result, &outpos,
                      zval_get_long(tmp),
                      width, padding, alignment);
          break;

        case 'e':
        case 'E':
        case 'f':
        case 'F':
        case 'g':
        case 'G':
        case 'h':
        case 'H':
          php_sprintf_appenddouble(&result, &outpos,
                       zval_get_double(tmp),
                       width, padding, alignment,
                       precision, adjusting,
                       *format, always_sign
                      );
          break;

        case 'c':
          php_sprintf_appendchar(&result, &outpos,
                    (char) zval_get_long(tmp));
          break;

        case 'o':
          php_sprintf_append2n(&result, &outpos,
                     zval_get_long(tmp),
                     width, padding, alignment, 3,
                     hexchars, expprec);
          break;

        case 'x':
          php_sprintf_append2n(&result, &outpos,
                     zval_get_long(tmp),
                     width, padding, alignment, 4,
                     hexchars, expprec);
          break;

        case 'X':
          php_sprintf_append2n(&result, &outpos,
                     zval_get_long(tmp),
                     width, padding, alignment, 4,
                     HEXCHARS, expprec);
          break;

        case 'b':
          php_sprintf_append2n(&result, &outpos,
                     zval_get_long(tmp),
                     width, padding, alignment, 1,
                     hexchars, expprec);
          break;

        case '%':
          php_sprintf_appendchar(&result, &outpos, '%');

          break;

        case '\0':
          if (!format_len) {
            zend_value_error("Missing format specifier at end of string");
            goto fail;
          }
          ZEND_FALLTHROUGH;

        default:
          zend_value_error("Unknown format specifier \"%c\"", *format);
          goto fail;
      }
      format++;
      format_len--;
    }
  }

  if (max_missing_argnum >= 0) {
    if (nb_additional_parameters == -1) {
      zend_value_error("The arguments array must contain %d items, %d given", max_missing_argnum + 1, argc);
    } else {
      zend_argument_count_error("%d arguments are required, %d given", max_missing_argnum + nb_additional_parameters + 1, argc + nb_additional_parameters);
    }
    goto fail;
  }

  /* possibly, we have to make sure we have room for the terminating null? */
  ZSTR_VAL(result)[outpos]=0;
  ZSTR_LEN(result) = outpos;
  return result;

fail:
  zend_string_efree(result);
  return NULL;
}
/* }}} */

/* php_formatted_print_get_array() {{{ */
static zval *php_formatted_print_get_array(zend_array *array, int *argc)
{
  zval *args, *zv;
  int n;

  n = zend_hash_num_elements(array);
  args = (zval *)safe_emalloc(n, sizeof(zval), 0);
  n = 0;
  ZEND_HASH_FOREACH_VAL(array, zv) {
    ZVAL_COPY_VALUE(&args[n], zv);
    n++;
  } ZEND_HASH_FOREACH_END();

  *argc = n;
  return args;
}
/* }}} */

/* {{{ Return a formatted string */
PHP_FUNCTION(sprintf)
{
  zend_string *result;
  char *format;
  size_t format_len;
  zval *args;
  int argc;

  ZEND_PARSE_PARAMETERS_START(1, -1)
    Z_PARAM_STRING(format, format_len)
    Z_PARAM_VARIADIC('*', args, argc)
  ZEND_PARSE_PARAMETERS_END();

  result = php_formatted_print(format, format_len, args, argc, 1);
  if (result == NULL) {
    RETURN_THROWS();
  }
  RETVAL_STR(result);
}
/* }}} */

/* {{{ Return a formatted string */
PHP_FUNCTION(vsprintf)
{
  zend_string *result;
  char *format;
  size_t format_len;
  zval *args;
  zend_array *array;
  int argc;

  ZEND_PARSE_PARAMETERS_START(2, 2)
    Z_PARAM_STRING(format, format_len)
    Z_PARAM_ARRAY_HT(array)
  ZEND_PARSE_PARAMETERS_END();

  args = php_formatted_print_get_array(array, &argc);

  result = php_formatted_print(format, format_len, args, argc, -1);
  efree(args);
  if (result == NULL) {
    RETURN_THROWS();
  }
  RETVAL_STR(result);
}
/* }}} */

/* {{{ Output a formatted string */
PHP_FUNCTION(printf)
{
  zend_string *result;
  size_t rlen;
  char *format;
  size_t format_len;
  zval *args;
  int argc;

  ZEND_PARSE_PARAMETERS_START(1, -1)
    Z_PARAM_STRING(format, format_len)
    Z_PARAM_VARIADIC('*', args, argc)
  ZEND_PARSE_PARAMETERS_END();

  result = php_formatted_print(format, format_len, args, argc, 1);
  if (result == NULL) {
    RETURN_THROWS();
  }
  rlen = PHPWRITE(ZSTR_VAL(result), ZSTR_LEN(result));
  zend_string_efree(result);
  RETURN_LONG(rlen);
}
/* }}} */

/* {{{ Output a formatted string */
PHP_FUNCTION(vprintf)
{
  zend_string *result;
  size_t rlen;
  char *format;
  size_t format_len;
  zval *args;
  zend_array *array;
  int argc;

  ZEND_PARSE_PARAMETERS_START(2, 2)
    Z_PARAM_STRING(format, format_len)
    Z_PARAM_ARRAY_HT(array)
  ZEND_PARSE_PARAMETERS_END();

  args = php_formatted_print_get_array(array, &argc);

  result = php_formatted_print(format, format_len, args, argc, -1);
  efree(args);
  if (result == NULL) {
    RETURN_THROWS();
  }
  rlen = PHPWRITE(ZSTR_VAL(result), ZSTR_LEN(result));
  zend_string_efree(result);
  RETURN_LONG(rlen);
}
/* }}} */

/* {{{ Output a formatted string into a stream */
PHP_FUNCTION(fprintf)
{
  php_stream *stream;
  char *format;
  size_t format_len;
  zval *args = NULL;
  int argc = 0;
  zend_string *result;

  ZEND_PARSE_PARAMETERS_START(2, -1)
    PHP_Z_PARAM_STREAM(stream)
    Z_PARAM_STRING(format, format_len)
    Z_PARAM_VARIADIC('*', args, argc)
  ZEND_PARSE_PARAMETERS_END();

  result = php_formatted_print(format, format_len, args, argc, 2);
  if (result == NULL) {
    RETURN_THROWS();
  }

  php_stream_write(stream, ZSTR_VAL(result), ZSTR_LEN(result));

  RETVAL_LONG(ZSTR_LEN(result));
  zend_string_efree(result);
}
/* }}} */

/* {{{ Output a formatted string into a stream */
PHP_FUNCTION(vfprintf)
{
  php_stream *stream;
  char *format;
  size_t format_len;
  zval *args;
  zend_array *array;
  int argc;
  zend_string *result;

  ZEND_PARSE_PARAMETERS_START(3, 3)
    PHP_Z_PARAM_STREAM(stream)
    Z_PARAM_STRING(format, format_len)
    Z_PARAM_ARRAY_HT(array)
  ZEND_PARSE_PARAMETERS_END();

  args = php_formatted_print_get_array(array, &argc);

  result = php_formatted_print(format, format_len, args, argc, -1);
  efree(args);
  if (result == NULL) {
    RETURN_THROWS();
  }

  php_stream_write(stream, ZSTR_VAL(result), ZSTR_LEN(result));

  RETVAL_LONG(ZSTR_LEN(result));
  zend_string_efree(result);
}
/* }}} */

Coverage Report

Created: 2026-10-28 06:20