姝ｅ垯琛ㄨ揪寮忕殑浣跨敤

Posted 2020-12-05

鏍囩锛?a href='http://www.mamicode.com/so/1/%e6%ad%a3%e5%88%99%e8%a1%a8%e8%be%be%e5%bc%8f' title='姝ｅ垯琛ㄨ揪寮?>姝ｅ垯琛ㄨ揪寮?/a>   class   hello   blog   mpi   article   妯″潡   span   鎸囧畾   

#鍘熸枃: http://blog.csdn.net/Rozol/article/details/70052637
#coding=utf-8
# regular.py 姝ｅ垯琛ㄨ揪寮?/span>
import re # 姝ｅ垯妯″潡

def regular():
    data = "She is more than pretty. 520"

    # --- 姝ｅ垯 ---
    reg = r"mo" # 鎸囧畾瀛楃 => span=(7, 9), match=鈥榤o鈥?/span>
    reg = r"." # (.)鍗曚釜瀛楃 => span=(0, 1), match=鈥楽鈥?/span>
    reg = r"." # ()杞箟绗?=> span=(23, 24), match=鈥?鈥?/span>
    reg = r"[.]" # ([])瀛楃闆嗗悎(娉ㄦ剰:閮ㄥ垎鐗规畩瀛楃澶卞幓鐗规畩鎰忎箟) => span=(23, 24), match=鈥?鈥?/span>
    reg = r"[love]" # []鍐呬换鎰忓瓧绗?=> span=(2, 3), match=鈥榚鈥?/span>
    reg = r"[i-u]" # (-)鑼冨洿 => span=(4, 5), match=鈥榠鈥?/span>
    reg = r"t{2}" # {}鍐呬负闀垮害(3涓?) => span=(20, 22), match=鈥榯t鈥?/span>
    reg = r"t{1,3}" # {M,} / {.N} / {N} => span=(12, 13), match=鈥榯鈥?/span>
    reg = r"(i|o|u){1}" # (())缁?=> span=(4, 5), match=鈥榠鈥?/span>
    reg = r"^S" # (^)寮€澶?=> span=(0, 1), match=鈥楽鈥?/span>
    reg = r"[^S]" # ([^])鍙栧弽(涓嶅惈H) => span=(1, 2), match=鈥榟鈥?/span>
    reg = r"520$" # ($)缁撳熬 => span=(25, 28), match=鈥?20鈥?/span>
    reg = r"et*" # (*)鍖归厤{0,}涓〃杈惧紡 => [鈥榚鈥? 鈥榚鈥? 鈥榚tt鈥榏
    reg = r"et+" # (+)鍖归厤{1,}涓〃杈惧紡 => [鈥榚tt鈥榏
    reg = r"et?" # (?)鍖归厤{0,1}涓〃杈惧紡 => [鈥榚鈥? 鈥榚鈥? 鈥榚t鈥榏
    reg = r".+?e" # (?)闈炶椽濠ā寮?span=(0, 20), match=鈥楽he is more than pre鈥?=> span=(0, 3), match=鈥楽he鈥?

    reg = r"145" # ascii鏍囩殑8杩涘埗鏁?145=101=e) => span=(2, 3), match=鈥榚鈥?/span>
    reg = r"d" # (d)鍗曚釜鏁板瓧 => span=(25, 26), match=鈥?鈥?(鎺ㄨ崘:[0-9])
    reg = r"D" # (D)闈炴暟瀛?=> span=(0, 1), match=鈥楽鈥?(鎺ㄨ崘:[^0-9])
    reg = r"s" # (s)绌虹櫧瀛楃 => span=(3, 4), match=鈥?鈥?(鎺ㄨ崘:[	

fv])
    reg = r"S" # (S)闈炵┖鐧藉瓧绗?=> span=(0, 1), match=鈥楽鈥?(鎺ㄨ崘:[^	

fv])
    reg = r"w" # (w)鍗曡瘝 => span=(0, 1), match=鈥楽鈥?(鎺ㄨ崘:[a-zA-Z0-9_])
    reg = r"W" # (W)闈炲崟璇?=> span=(3, 4), match=鈥?鈥?(鎺ㄨ崘:[^a-zA-Z0-9_])
    reg = r"AS" # (A)寮€澶?=> span=(0, 1), match=鈥楽鈥?/span>
    reg = r"520" # ()缁撳熬 => span=(25, 28), match=鈥?20鈥?/span>
    reg = r"y" # ()鍗曡瘝杈圭晫(Hello) => span=(22, 23), match=鈥榶鈥?/span>
    reg = r"oB" # (B)闈炲崟璇嶈竟鐣?world) => span=(8, 9), match=鈥榦鈥?/span>
    reg = r"[01]dd|2[0-4]d|25[0-5]" # 鎴?|) 澶氫綅鏁?鍖归厤0 - 255 鐩存帴鐨勬暟瀛?


    index = re.search(reg, data) # 鏌ユ壘鍗曚釜鍖归厤椤?/span>
    index = re.match(r"She", data) # 鍖归厤寮€澶?=> span=(0, 3), match=鈥楽he鈥?/span>
    index = re.fullmatch(r".+", data) # 鍖归厤鍏ㄩ儴 => span=(0, 28), match=鈥楽he is more than pretty. 520鈥?/span>

    lists = re.findall(reg, data) # 鏌ユ壘鎵€鏈夊尮閰嶉」(鍒楄〃)
    lists = re.split(r"o", data, maxsplit=1) # 鏍规嵁姝ｅ垯鍒嗗壊瀛楃涓?maxsplit鍒嗗壊娆℃暟) => [鈥楽he is m鈥? 鈥榬e than pretty. 520鈥榏

    strs = re.sub(r".", r"!", data, count=1) # 鏇挎崲(count:鏇挎崲娆℃暟)(鍖归厤鏇挎崲,鏈尮閰嶅師鏍? => She is more than pretty! 520

    re.purge() # 娓呴櫎姝ｅ垯琛ㄨ揪寮忕紦瀛?/span>



    # --- 姝ｅ垯琛ㄨ揪寮忓璞?---
    pat = re.compile(r"e") # 缂栬瘧鎴愭鍒欏璞?/span>
    # 鍖归厤妯″紡鏈?浣跨敤|缁勫悎): re.DEBUG / re.I(IGNORECASE)涓嶅尯鍒嗗ぇ灏忓啓 / re.L(LOCALE) / re.M(MULTILINE) / re.S(DOTALL) 鍖归厤浠讳綍瀛楃, 鈥?鈥樺惈鎹㈣, 娌℃湁姝ゆ爣蹇? 鈥?鈥橀櫎鎹㈣绗?/ re.U(UNICODE) / re.X(VERBOSE)
    pat = re.compile(r"e", re.S|re.I)

    index = pat.search(data) # 鏌ユ壘鍗曚釜鍖归厤椤?=> span=(2, 3), match=鈥榚鈥?/span>
    index = pat.search(data, 5) # => span=(10, 11), match=鈥榚鈥?/span>
    index = pat.search(data, 1, 10)
    index = pat.match(data) # 鍖归厤寮€澶?=> None
    index = pat.match(data, 2) # => span=(2, 3), match=鈥榚鈥?/span>
    index = pat.match(data, 1, 10)
    index = pat.fullmatch(data) # 鍖归厤鍏ㄩ儴 => None
    index = pat.fullmatch(data, 2) # => None
    index = pat.fullmatch(data, 2, 3) # span=(2, 3), match=鈥榚鈥?/span>

    lists = pat.split(data, maxsplit=0) # 鍒嗗壊 => [鈥楽h鈥? 鈥?is mor鈥? 鈥?than pr鈥? 鈥榯ty. 520鈥榏
    lists = pat.findall(data) # 鏌ユ壘鍏ㄩ儴 => [鈥榚鈥? 鈥榚鈥? 鈥榚鈥榏
    lists = pat.findall(data, 5) # => [鈥榚鈥? 鈥榚鈥榏
    lists = pat.findall(data, 1, 10) # => [鈥榚鈥榏

    strs = pat.sub(r"o", data, count=0) # 鏇挎崲 => Sho is moro than protty. 520


    # --- Match ---
    match = index;
    # span=(2, 3), match=鈥榚鈥?/span>
    strs = match.string # 琚尮閰嶇殑鏁版嵁 => She is more than pretty. 520
    strs = match.group() # 鑾峰彇 match(鍖归厤鍒扮殑) 鏁版嵁 => e
    pos = match.pos # 璧峰鍧愭爣
    pos = match.endpos # 缁撴潫鍧愭爣
    index.span()[0]  # match(鍖归厤鍒?鐨勮捣濮嬪潗鏍?=> 2
    index.span()[1]  # match鐨勭粨鏉熷潗鏍?=> 3



if __name__ == "__main__":
    regular()