我有一个文本文件，其中包含sql命令除以＆＃39; /＆＃39;但是它还包含/ ** /和空格之类的注释。 我需要解析文件，以便我可以运行每个命令，但我需要忽略这些注释。 我已经完成了这个小代码，但由于某种原因它甚至没有给我文本文件中的一半行：
public string[] Parser(string caminho)
{
using (StreamReader sr = new StreamReader(caminho, Encoding.Default))
{
string text = sr.ReadToEnd();
string[] lines = text.Split('/');
return lines;
}
}
无论如何使用正则表达式来解决这个问题吗？
以下是带有命令的.txt文件的链接：
https://drive.google.com/file/d/0B1xc1ft-s78NTHdZdlpTTWlfLVE/view?usp=sharing
任何帮助都会得到很好的帮助。谢谢
以下是该文件的示例：
UPDATE APPLCONFIG SET GGDSC='3.5.96' WHERE GGCOD='APP_NAME'
/
UPDATE APPLCONFIG SET GGDSC='3.5.96' WHERE GGCOD='NEG_NAME'
/
UPDATE APPLCONFIG SET GGDSC='3.5.96' WHERE GGCOD='DAT_NAME'
/
ALTER TABLE PROPOSTAS ADD (COEFGERAL_PLT NUMBER(3,6) DEFAULT 0)
/
ALTER TABLE ORC
ADD MercadoInt VARCHAR2(1)
ADD Coef_KrMo NUMBER(20,10)
ADD Coef_KrMt NUMBER(20,10)
ADD Coef_KrEq NUMBER(20,10)
ADD Coef_KrSb NUMBER(20,10)
ADD Coef_KrGb NUMBER(20,10)
ADD Coef_MDEmp NUMBER(20,10)
ADD Coef_MDLoc NUMBER(20,10)
ADD Abrv_MDLoc VARCHAR2(10)
ADD Dsc_MDLoc VARCHAR2(50)
ADD Arred_MDLoc VARCHAR2(1)
ADD Arred_NDecs NUMBER(1)
/
UPDATE Orc set MercadoInt='N', Coef_KrMo=1, Coef_KrMt=1, Coef_KrEq=1, Coef_KrSb=1, Coef_KrGb=1, Coef_MDEmp=1, Coef_MDLoc=1, Abrv_MDLoc='', Dsc_MDLoc='', Arred_MDLoc='N', Arred_NDecs=0 WHERE MercadoInt IS NULL
/
DROP VIEW VW_EXPSUBEEXCELL
/
另一部分有评论：
/
---------------------------------------------------------------------
UPDATE CDPREPORTSQL
SET COMANDOSQL_FROM =
'SELECT DESCONTO,EMPCOD,EMPDSC,LINVER,NOMESISTEMA,OBS,ORCCOD,ORCVER,PEDCOD,PEDDSC,
ROUND(PRCUNIT*#CAMBIO#,5) PRCUNIT,
ROUND(PRCUNITSEMDESC*#CAMBIO#,5) PRCUNITSEMDESC,
PROPCHECK,QTDGLOB,QTDPROP,REFCOD,REFDSC,EMPCODVER, COEFGERAL_PLT FROM #OWNER#.VW_PROPOSTAS',
COMANDOSQL_WHERE =
'WHERE ORCCOD=#ORCCOD# AND ORCVER=#ORCVER# AND NOMESISTEMA=#NOMESISTEMA# AND PEDCOD=#MYCOD#'
WHERE REPID = 'CDP0000057'
/
---------------------------------------------------------------------
DROP VIEW VW_PROPSRECEPSOUTROS
/
CREATE OR REPLACE FORCE VIEW VW_PROPSRECEPSOUTROS (orccod,
orcver,
nomesistema,
pedcod,
peddsc,
empcod,
empcodver,
empdsc,
pedtprec,
linver,
totproposta,
totdesconto,
totpropsel,
totmin
)
AS
SELECT b.orccod, b.orcver, b.nomesistema, b.pedcod, b.peddsc, p.empcod,
p.empcodver, h.empdsc, b.pedtprec, l.linver,
SUM ( ((l.qtdorc * pp.indfis) * ( (p.prcunit * (1 + p.deconto))) * (1 + p.coefgeral_plt)
* (CASE
WHEN r.tprec = '1'
THEN o.coef_krmo
WHEN r.tprec = '2'
THEN o.coef_krmt
WHEN r.tprec = '3'
THEN o.coef_kreq
WHEN r.tprec = '4'
THEN o.coef_krsb
ELSE 1
END
)
)
) totproposta,
SUM( (l.qtdorc * pp.indfis * p.prcunit ) - ((l.qtdorc * pp.indfis) * ( (p.prcunit * (1 + p.deconto))) * (1 + p.coefgeral_plt)
* (CASE
WHEN r.tprec = '1'
THEN o.coef_krmo
WHEN r.tprec = '2'
THEN o.coef_krmt
WHEN r.tprec = '3'
THEN o.coef_kreq
WHEN r.tprec = '4'
THEN o.coef_krsb
ELSE 1
END
)
)
) * -1 as TOTDESCONTO,
/* SUM
( (CASE
WHEN (NVL (p.deconto, 0) + NVL(p.coefgeral_plt,0)) <> 0
THEN (l.qtdorc * pp.indfis) * ((
(p.prcunit * (case when p.deconto <> 0 then p.deconto else 1 end)) *
case when p.coefgeral_plt <> 0 then p.coefgeral_plt else 0 end)
* (CASE
WHEN r.tprec = '1'
THEN o.coef_krmo
WHEN r.tprec = '2'
THEN o.coef_krmt
WHEN r.tprec = '3'
THEN o.coef_kreq
WHEN r.tprec = '4'
THEN o.coef_krsb
ELSE 1
END
)
)
ELSE 0
END
)
* (-1)
) totdesconto_old,*/
SUM
((CASE
WHEN p.empsel = 1
THEN ( (l.qtdorc * pp.indfis) * ((p.prcunit * (1 + p.deconto)) * (1 + p.coefgeral_plt))
* (CASE
WHEN r.tprec = '1'
THEN o.coef_krmo
WHEN r.tprec = '2'
THEN o.coef_krmt
WHEN r.tprec = '3'
THEN o.coef_kreq
WHEN r.tprec = '4'
THEN o.coef_krsb
ELSE 1
END
)
)
ELSE 0
END
)
) propsel,
NVL (SUM ( (l.qtdorc * pp.indfis) * (SELECT MIN ((pp.prcunit * (1 + pp.deconto)) * ( 1 + pp.coefgeral_plt))
FROM propostas pp
WHERE p.orccod = pp.orccod
AND p.orcver = pp.orcver
AND p.nomesistema = pp.nomesistema
AND p.pedcod = pp.pedcod
AND p.recurcod = pp.recurcod
AND pp.prcunit > 0
AND p.prcunit = 0
AND NVL (p.obs, '@') = '@')
),
0
)
+ NVL (SUM ( (l.qtdorc * pp.indfis) * (((p.prcunit * (1 + p.deconto)) * (1+p.coefgeral_plt))
* (CASE
WHEN r.tprec = '1'
THEN o.coef_krmo
WHEN r.tprec = '2'
THEN o.coef_krmt
WHEN r.tprec = '3'
THEN o.coef_kreq
WHEN r.tprec = '4'
THEN o.coef_krsb
ELSE 1
END
)
)
),
0
) totmin
FROM pedproposta b,
propostas p,
empresash h,
recursos r,
prcficha pp,
articlin l,
orc o
WHERE o.orccod = b.orccod
AND o.orcver = b.orcver
AND o.nomesistema = b.nomesistema
AND b.orccod = p.orccod
AND b.orcver = p.orcver
AND b.nomesistema = p.nomesistema
AND b.pedcod = p.pedcod
AND p.empcod = h.empcod
AND p.orccod = r.orccod
AND p.orcver = r.orcver
AND p.nomesistema = r.nomesistema
AND p.recurcod = r.recurcod
AND p.recver = r.recver
AND p.rgmcod = r.rgmcod
AND p.orccod = pp.orccod
AND p.orcver = pp.orcver
AND p.nomesistema = pp.nomesistema
AND p.recurcod = pp.recurcod
AND p.recver = pp.recver
AND p.rgmcod = pp.rgmcod
AND pp.orccod = l.orccod
AND pp.orcver = l.orcver
AND pp.nomesistema = l.nomesistema
AND pp.prccod = l.prccod
AND pp.prcver = l.prcver
and b.pedtprec = '2'
GROUP BY b.orccod,
b.orcver,
b.nomesistema,
p.empcod,
p.empcodver,
h.empdsc,
b.pedtprec,
l.linver,
b.pedcod,
b.peddsc
/
我需要获取命令并忽略其他所有内容。
答案 0 :(得分：0)
一种方法是使用空字符串对/* ... */进行正则表达式替换，然后执行Split()。像
var foo = Regex.Replace(text, @"\/\**?\*\/", " ");
删除评论。当你进行拆分时，告诉它忽略空行，并过滤掉只包含空格的行：
var lines = foo.Split(new[]{'/'}, StringSplitOptions.RemoveEmptyEntries)
.Where(line => !string.IsNullOrWhiteSpace(line))
.ToArray();
但是，请注意，如果其中一个查询在引用字符串中包含/字符，则仍会出现问题。
使用可识别注释，引用字符串等的解析器，您可能最好这样做。但如果你能忍受这些限制，上述情况应该会很好。
这里是完整的代码：
public string[] Parser(string caminho)
{
string text = File.ReadAllText(caminho);
var foo = Regex.Replace(text, @"\/\**?\*\/", " ");
var lines = foo.Split(new[]{'/'}, StringSplitOptions.RemoveEmptyEntries)
.Where(line => !string.IsNullOrWhiteSpace(line))
.ToArray();
return lines;
}