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- // #ifdef VUE3 || VUE2 && uniVersion >= 4.56
- @use "sass:math";
- // #endif
- $use-css-var: false !default;
- @function div($dividend, $divisor) {
- // #ifdef VUE3 || VUE2 && uniVersion >= 4.56
- @return math.div($dividend, $divisor);
- // #endif
- // #ifndef VUE3 || VUE2 && uniVersion >= 4.56
- @return $dividend / $divisor;
- // #endif
- }
- // @function to-number($string) {
- // $result: 0;
- // $is-negative: str-slice($string, 1, 1) == '-';
- // $length: str-length($string);
-
- // @if $is-negative {
- // $string: str-slice($string, 2);
- // $length: $length - 1;
- // }
-
- // $decimal-index: str-index($string, '.');
-
- // @if $decimal-index {
- // $decimal-str: str-slice($string, $decimal-index + 1);
- // $decimal-length: str-length($decimal-str);
- // $length: $length - $decimal-length - 1;
- // $string: str-slice($string, 1, $decimal-index - 1);
-
- // $result: to-number($decimal-str) * pow(10, $decimal-length * -1);
- // }
- // $numbers:(
- // '0': 0,
- // '1': 1,
- // '2': 2,
- // '3': 3,
- // '4': 4,
- // '5': 5,
- // '6': 6,
- // '7': 7,
- // '8': 8,
- // '9': 9,
- // );
-
- // @for $i from 1 through $length {
- // $key: str-slice($string, $i, $i);
- // $number: map-get($numbers, $key);
- // $digit: if($number == 0, 0, if($length - $i > 0, pow(10, $length - $i), 0));
- // $result: $result + $digit * $number + if($length - $i == 0, $number, 0);
- // }
- // @return if($is-negative, $result * -1, $result) ;
- // }
- // // 由于vue2 h5和app不支持动态rpx 故转成px
- // @function rpx-to-px($rpx-string) {
- // @if type-of($rpx-string) == list {
- // $new-list: ();
- // @each $value in $rpx-string {
- // $v: $value + '';
- // $start: str-index($v, 'rpx');
- // @if $start {
- // $new-list: append($new-list, rpx-to-px($v));
- // } @else {
- // $new-list: append($new-list, $value);
- // }
- // }
- // @return $new-list;
- // }
-
- // @if type-of($rpx-string) == number and comparable($rpx-string, 1rpx) {
- // @return rpx-to-px($rpx-string + '');
- // }
-
- // @if type-of($rpx-string) != string {
- // @return $rpx-string;
- // }
- // $start: str-index($rpx-string, 'rpx');
- // $number-map: (
- // '-': 1,
- // '0': 1,
- // '1': 1,
- // '2': 1,
- // '3': 1,
- // '4': 1,
- // '5': 1,
- // '6': 1,
- // '7': 1,
- // '8': 1,
- // '9': 1,
- // );
- // @if not $start {
- // @return $rpx-string;
- // }
- // $result: '';
- // @while $start {
- // // 获取 'rpx' 前的数字
- // $number-end: $start - 1;
- // $number-start: $number-end;
- // @while $number-start > 0 and map-get($number-map, str-slice($rpx-string, $number-start, $number-start)) ==1 {
- // $number-start: $number-start - 1;
- // }
- // // 提取数字部分
- // $number: to-number(str-slice($rpx-string, $number-start + 1, $number-end));
-
- // // 转换 'rpx' 到 'px'
- // // $px-value: ($number / 2) + 'px';
- // $px-value: div($number, 2) + 'px';
- // $result: $result + str-slice($rpx-string, 0, $number-start) + $px-value;
-
- // // 更新字符串和起始位置
- // $rpx-string: str-slice($rpx-string, $start + 3);
- // $start: str-index($rpx-string, 'rpx');
- // }
-
- // @return $result + $rpx-string;
- // }
- @function rpx-to-px($value) {
- // 递归处理列表
- @if type-of($value) == list {
- $new-list: ();
- @each $item in $value {
- $new-list: append($new-list, rpx-to-px($item));
- }
- @return $new-list;
- }
-
- // 处理数字类型 - 带 rpx 单位
- @if type-of($value) == number and unit($value) == 'rpx' {
- // 安全处理单位转换
- @return calc-strip-unit($value) * 0.5 * 1px;
- }
-
- // 处理字符串类型
- @if type-of($value) == string {
- $string: $value;
- $rpx-index: str-index($string, 'rpx');
-
- // 如果字符串以数字开头并以 rpx 结尾,转换为数值
- @if $rpx-index == (str-length($string) - 2) {
- $num-str: str-slice($string, 1, $rpx-index - 1);
- $number: to-number($num-str);
- @if type-of($number) == number {
- @return $number * 0.5 * 1px;
- }
- }
-
- // 字符串中可能包含多个 rpx 值
- @if $rpx-index {
- $result: '';
- @while $rpx-index {
- // 找到数字部分起点
- $num-end: $rpx-index - 1;
- $num-start: $num-end;
- @while $num-start > 0 and is-numeric-char(str-slice($string, $num-start, $num-start)) {
- $num-start: $num-start - 1;
- }
-
- // 提取数字部分
- $num-str: str-slice($string, $num-start + 1, $num-end);
- $number: to-number($num-str);
-
- // 转换为 px 数值
- $px-value: $number * 0.5 * 1px;
-
- // 构建结果字符串
- $result: $result + str-slice($string, 1, $num_start) + '#{$px_value}';
-
- // 更新剩余字符串
- $string: str-slice($string, $rpx-index + 3);
- $rpx-index: str-index($string, 'rpx');
- }
- @return #{$result + $string};
- }
- }
-
- // 其他类型直接返回
- @return $value;
- }
- // 辅助函数:安全去除单位并返回数值
- @function calc-strip-unit($number) {
- @if type-of($number) == number {
- $unit: unit($number);
- $units: ("px": 1px, "rpx": 1rpx, "em": 1em, "rem": 1rem, "%": 1%);
-
- @if map-has-key($units, $unit) {
- @return div($number , map-get($units, $unit));
- }
-
- @if unitless($number) {
- @return $number;
- }
- }
-
- @return $number;
- }
- // 辅助函数:检查字符是否为数字
- @function is-numeric-char($char) {
- $chars: "-.0123456789";
- @return str-index($chars, $char) != null;
- }
- // 辅助函数:将字符串安全转换为数字
- @function to-number($string) {
- // 如果输入已经是数字,直接返回
- @if type-of($string) == number {
- @return $string;
- }
-
- // 处理带符号的数字
- $is-negative: false;
- $numeric: "";
- $found-number: false;
-
- // 提取所有数字字符
- @for $i from 1 through str-length($string) {
- $char: str-slice($string, $i, $i);
-
- @if $char == "-" and $numeric == "" {
- $is-negative: true;
- }
- @else if $char == "." and str-index($numeric, ".") == null {
- $numeric: $numeric + $char;
- }
- @else if $char >= "0" and $char <= "9" {
- $numeric: $numeric + $char;
- $found-number: true;
- }
- }
-
- // 如果有实际数字内容,转换为数值
- @if $found-number {
- $result: 0;
- $decimal-index: str-index($numeric, ".");
-
- @if $decimal-index {
- // 处理带小数的数字
- $integer-part: str-slice($numeric, 1, $decimal-index - 1);
- $decimal-part: str-slice($numeric, $decimal-index + 1);
-
- @if $integer-part == "" { $integer-part: "0"; }
-
- $result: to-integer($integer-part);
-
- $divisor: 1;
- @for $i from 1 through str-length($decimal-part) {
- $divisor: $divisor * 10;
- $digit: to-integer(str-slice($decimal-part, $i, $i));
- $result: $result + ($digit / $divisor);
- }
- } @else {
- // 处理整数
- $result: to-integer($numeric);
- }
-
- @return if($is-negative, -$result, $result);
- }
-
- // 无法转换则返回原字符串
- @return $string;
- }
- // 辅助函数:将整数字符串转换为数字
- @function to-integer($string) {
- $result: 0;
-
- @for $i from 1 through str-length($string) {
- $char: str-slice($string, $i, $i);
- $result: $result * 10 + (str-index("0123456789", $char) - 1);
- }
-
- @return $result;
- }
- @function create-var($name, $values...) {
- // 将不定数量的参数转换为列表
- // $use-css-var: false;
- // $use-css-var: nth($values, -1) == false;
- $value-list: $values;
- $css-value: null;
-
- // @if type-of(nth($values, -1)) == bool {
- // $use-css-var: nth($values, -1); // 获取布尔值
- // // 移除最后一个元素(布尔值)
- // $value-list: ();
- // @for $i from 1 through (length($values) - 1) {
- // $value-list: append($value-list, nth($values, $i));
- // }
- // }
-
- @if length($value-list) == 0 {
- // @warn "The list must have at least 1 values.";
- @return '';
- } @else {
- // 初始化CSS变量的值为列表中的第一个值
- /* #ifndef VUE2 */
- $css-value: nth($value-list, 1);
- /* #endif */
- /* #ifdef VUE2 */
- $css-value: rpx-to-px(nth($value-list, 1));
- /* #endif */
- }
- // 检查列表长度是否大于等于2
- @if length($value-list) >= 2 {
- // 使用@for循环遍历剩余的值,并构建CSS变量的完整值
- @for $i from 2 through length($value-list) {
- /* #ifndef VUE2 */
- $css-value: $css-value + ", " + nth($value-list, $i);
- /* #endif */
- /* #ifdef VUE2 */
- $css-value: $css-value + ", " + rpx-to-px(nth($value-list, $i));
- /* #endif */
- }
- }
-
- /* #ifdef UNI-APP-X && APP && uniVersion >= 4.71*/
- @if $use-css-var {
- @return var(--l-#{$name}, #{$css-value});
- } @else {
- @return $css-value;
- }
- /* #endif */
-
- /* #ifndef APP-NVUE || APP-ANDROID || APP-IOS || APP-HARMONY */
- @return var(--l-#{$name}, #{$css-value});
- /* #endif */
- /* #ifdef APP-NVUE || APP-ANDROID || APP-IOS || APP-HARMONY */
- @return $css-value;
- /* #endif */
- }
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