Differences

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--- regex:numbers:floating-point [2022/09/20 23:03] – created peter
+++ regex:numbers:floating-point [2022/09/20 23:05] (current) – peter
@@ Line 1: / Line 1: @@
 ====== Regex - Numbers - Floating-point ======
-[[Regex:Numbers:Floating-point|Floating-point]]
+===== Floating-point =====
+<code>
+^-?([1-9]\d*\.\d*|0\.\d*[1-9]\d*|0?\.0+|0)$
+</code>
+----
+===== Positive floating-point =====
+<code>
+^[1-9]\d*\.\d*|0\.\d*[1-9]\d*$
+</code>
+or
+<code>
+^[1-9]\d*\.\d*|0\.\d*[1-9]\d*|0?\.0+|0$
+</code>
+----
+===== Negative floating-point =====
+<code>
+^((-\d+(\.\d+)?)|(0+(\.0+)?))$
+</code>
+or
+<code>
+^-([1-9]\d*\.\d*|0\.\d*[1-9]\d*)$
+</code>
+or
+<code>
+^(-([1-9]\d*\.\d*|0\.\d*[1-9]\d*))|0?\.0+|0$
+</code>
+or
+<code>
+^(-(([0-9]+\.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*\.[0-9]+)|([0-9]*[1-9][0-9]*)))$
+</code>
 ----