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Move #fmt conversion model into ExtFmt.CT namespace

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This commit is contained in:
Brian Anderson 2011-04-13 18:59:40 -04:00
parent 44aed626bf
commit aebdef0cd6
2 changed files with 76 additions and 77 deletions
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96
src/lib/ExtFmt.rs
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@ -1,56 +1,56 @@
import option.none;
import option.some;
tag signedness {
signed;
unsigned;
}
tag caseness {
case_upper;
case_lower;
}
tag ty {
ty_bool;
ty_str;
ty_char;
ty_int(signedness);
ty_bits;
ty_hex(caseness);
// FIXME: More types
}
tag flag {
flag_left_justify;
flag_left_zero_pad;
flag_left_space_pad;
flag_plus_if_positive;
flag_alternate;
}
tag count {
count_is(int);
count_is_param(int);
count_is_next_param;
count_implied;
}
// A formatted conversion from an expression to a string
type conv = rec(option.t[int] param,
vec[flag] flags,
count width,
count precision,
ty ty);
// A fragment of the output sequence
tag piece {
piece_string(str);
piece_conv(conv);
}
// Functions used by the fmt extension at compile time
mod CT {
tag signedness {
signed;
unsigned;
}
tag caseness {
case_upper;
case_lower;
}
tag ty {
ty_bool;
ty_str;
ty_char;
ty_int(signedness);
ty_bits;
ty_hex(caseness);
// FIXME: More types
}
tag flag {
flag_left_justify;
flag_left_zero_pad;
flag_left_space_pad;
flag_plus_if_positive;
flag_alternate;
}
tag count {
count_is(int);
count_is_param(int);
count_is_next_param;
count_implied;
}
// A formatted conversion from an expression to a string
type conv = rec(option.t[int] param,
vec[flag] flags,
count width,
count precision,
ty ty);
// A fragment of the output sequence
tag piece {
piece_string(str);
piece_conv(conv);
}
fn parse_fmt_string(str s) -> vec[piece] {
let vec[piece] pieces = vec();
auto lim = _str.byte_len(s);