I have this Descriptions

Description
T2 SMD MOS N/P SI1555 SOT363 700/600mA 20/8V -55/150C Dual 390/850mOHM
T2 SMD MOS N/P FDS8858CZ SO-8 8.6/7.3A 30V 0.017OHM
T2 SMD MOS N/P EM6M2T2R SOT563 200/200mA 20V 1OHM ESD PROT
FLTR SMD 0603 FER BEAD 220OHM @100MHZ /-25% 0,4OHM 1.4A

What I want to return is:

Current
700/600mA
8.6/7.3A
200/200mA
1.4A

For that I tried this regex

(\s|^)(-)?(\d \.?\d*(A|mA)(DC|AC)?)(?=\s|$)

I could not get it to work with values containing a / as 700/600mA , 8.6/7.3A , 200/200mA

How could I correct my regex?

CodePudding user response：

You can use

(?<!\S)-?\d (?:\.\d )?(?:/-?\d (?:\.\d )?)?m?A(?:[DA]C)?(?!\S)

Explanation

• (?<!\S) Assert a whitespace boundary to the left
• -?\d (?:\.\d )? Match 1 digits with an optional decimal part
• (?:/-?\d (?:\.\d )?)? Optionally match / and 1 digits with an optional decimal part
• m?A Match an optional m followed by A
• (?:[DA]C)? Match optional DA or AC
• (?!\S) Assert a whitespace boundary to the right

Regex demo

If you meant to match m mA DC AC the optional group should be part of the alternation:

 (?<!\S)-?\d (?:\.\d )?(?:/-?\d (?:\.\d )?)?(?:m?A|[DA]C)(?!\S)

Regex demo

CodePudding user response：

You could use

([\d./]{2,}m*A )

if you don't need to catch all matches in the same pattern

CodePudding user response：

(\d (\.\d )?\/)?\d (\.\d )?[m]?A