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fixed floating number leading zeroes serialization #22

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fixed floating number leading zeroes serialization #22

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a707474
fixed floating number leading zeroes serialization
Guiorgy Jun 29, 2025
49d71f7
trim trailing zeroes after the decimal point
Guiorgy Jun 29, 2025
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22 changes: 18 additions & 4 deletions jim2.h
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Original file line number Diff line number Diff line change
Expand Up @@ -151,7 +151,7 @@ void jim_bool(Jim *jim, int boolean)
jim_element_end(jim);
}

static void jim_integer_no_element(Jim *jim, long long int x)
static void jim_integer_no_element(Jim *jim, long long int x, int lzeros, int rtrim)
{
if (x < 0) {
jim_write_cstr(jim, "-");
Expand All @@ -169,20 +169,32 @@ static void jim_integer_no_element(Jim *jim, long long int x)
x /= 10;
}

while (lzeros > 0) {
buffer[count++] = '0';
--lzeros;
}

for (size_t i = 0; i < count / 2; ++i) {
char t = buffer[i];
buffer[i] = buffer[count - i - 1];
buffer[count - i - 1] = t;
}

if (rtrim && count != 0) {
while (count != 1 && buffer[count - 1] == '0') {
buffer[count - 1] = '\0';
--count;
}
}

jim_write(jim, buffer, count);
}
}

void jim_integer(Jim *jim, long long int x)
{
jim_element_begin(jim);
jim_integer_no_element(jim, x);
jim_integer_no_element(jim, x, 0, 0);
jim_element_end(jim);
}

Expand All @@ -199,18 +211,20 @@ void jim_float(Jim *jim, double x, int precision)
} else {
jim_element_begin(jim);

jim_integer_no_element(jim, (long long int) x);
jim_integer_no_element(jim, (long long int) x, 0, 0);
x -= (double) (long long int) x;
int lzeros = 0;
while (precision-- > 0) {
x *= 10.0;
lzeros += -1 < x && x < 1;
}
jim_write_cstr(jim, ".");

long long int y = (long long int) x;
if (y < 0) {
y = -y;
}
jim_integer_no_element(jim, y);
jim_integer_no_element(jim, y, lzeros, 1);

jim_element_end(jim);
}
Expand Down