1
0
mirror of https://github.com/vlang/v.git synced 2023-08-10 21:13:21 +03:00
v/vlib/encoding/csv/to_struct_arr.v

69 lines
1.3 KiB
V
Raw Normal View History

module csv
import strconv
// decode csv to struct
pub fn decode[T](data string) []T {
mut result := []T{}
if data == '' {
return result
}
mut parser := new_reader(data)
mut columns_names := []string{}
mut i := 0
for {
items := parser.read() or { break }
if i == 0 {
for val in items {
columns_names << val
}
} else {
mut t_val := T{}
$for field in T.fields {
col := get_column(field.name, columns_names)
if col > -1 && col < items.len {
$if field.typ is string {
t_val.$(field.name) = items[col]
} $else $if field.typ is int {
t_val.$(field.name) = items[col].int()
} $else $if field.typ is f32 {
t_val.$(field.name) = f32(strconv.atof64(items[col]) or { f32(0.0) })
} $else $if field.typ is f64 {
t_val.$(field.name) = strconv.atof64(items[col]) or { f64(0.0) }
} $else $if field.typ is bool {
t_val.$(field.name) = string_to_bool(items[col])
}
}
}
result << t_val
}
i++
}
return result
}
fn string_to_bool(val string) bool {
l_val := val.to_lower().trim_space()
if l_val == 'true' {
return true
}
2022-07-17 10:54:36 +03:00
i_val := val.int()
if i_val != 0 {
return true
}
return false
}
fn get_column(name string, columns []string) int {
for i, val in columns {
if val == name {
return i
}
}
return -1
}