From f5c4671bfbad96bf346bd7e9a21fc4317b4959df Mon Sep 17 00:00:00 2001 From: Indrajith K L Date: Sat, 3 Dec 2022 17:00:20 +0530 Subject: Adds most of the tools --- v_windows/v/old/vlib/strconv/format.v | 113 ++++++++++++++++++++++++++++++++++ 1 file changed, 113 insertions(+) create mode 100644 v_windows/v/old/vlib/strconv/format.v (limited to 'v_windows/v/old/vlib/strconv/format.v') diff --git a/v_windows/v/old/vlib/strconv/format.v b/v_windows/v/old/vlib/strconv/format.v new file mode 100644 index 0000000..e11a604 --- /dev/null +++ b/v_windows/v/old/vlib/strconv/format.v @@ -0,0 +1,113 @@ +module strconv + +/* +printf/sprintf V implementation + +Copyright (c) 2020 Dario Deledda. All rights reserved. +Use of this source code is governed by an MIT license +that can be found in the LICENSE file. + +This file contains the printf/sprintf functions +*/ +import strings + +pub enum Align_text { + right = 0 + left + center +} + +/* +Float conversion utility +*/ +const ( + // rounding value + dec_round = [ + f64(0.5), + 0.05, + 0.005, + 0.0005, + 0.00005, + 0.000005, + 0.0000005, + 0.00000005, + 0.000000005, + 0.0000000005, + 0.00000000005, + 0.000000000005, + 0.0000000000005, + 0.00000000000005, + 0.000000000000005, + 0.0000000000000005, + 0.00000000000000005, + 0.000000000000000005, + 0.0000000000000000005, + 0.00000000000000000005, + ] +) + +/* +const( + // rounding value + dec_round = [ + f64(0.44), + 0.044, + 0.0044, + 0.00044, + 0.000044, + 0.0000044, + 0.00000044, + 0.000000044, + 0.0000000044, + 0.00000000044, + 0.000000000044, + 0.0000000000044, + 0.00000000000044, + 0.000000000000044, + 0.0000000000000044, + 0.00000000000000044, + 0.000000000000000044, + 0.0000000000000000044, + 0.00000000000000000044, + 0.000000000000000000044, + ] +) +*/ +// max float 1.797693134862315708145274237317043567981e+308 + +/* +Single format functions +*/ +pub struct BF_param { +pub mut: + pad_ch byte = byte(` `) // padding char + len0 int = -1 // default len for whole the number or string + len1 int = 6 // number of decimal digits, if needed + positive bool = true // mandatory: the sign of the number passed + sign_flag bool // flag for print sign as prefix in padding + allign Align_text = .right // alignment of the string + rm_tail_zero bool // remove the tail zeros from floats +} + +pub fn format_str(s string, p BF_param) string { + if p.len0 <= 0 { + return s.clone() + } + dif := p.len0 - utf8_str_visible_length(s) + if dif <= 0 { + return s.clone() + } + mut res := strings.new_builder(s.len + dif) + if p.allign == .right { + for i1 := 0; i1 < dif; i1++ { + res.write_b(p.pad_ch) + } + } + res.write_string(s) + if p.allign == .left { + for i1 := 0; i1 < dif; i1++ { + res.write_b(p.pad_ch) + } + } + return res.str() +} -- cgit v1.2.3